Aluminum Entrances and Storefronts
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in Aluminum Entrances and Storefronts.
−---
−title: Aluminum Entrances and Storefronts
−category: Architectural / Openings
−toc_depth: 3
−description: >
− When to use: Thermally broken extruded aluminum framing systems with insulating glass for ground-floor commercial entries, storefront window walls, vestibules, and similar non-load-bearing perimeter glazing applications. Covers framing systems (center-set, front-set, back-set) in nominal 1-3/4 in., 2 in., and 2-1/2 in. depths; medium-stile, wide-stile, and narrow-stile swing entrance doors with closers, exit devices, and accessible hardware; transoms, mid-rails, and sidelights; thermal break construction (poured-and-debridged polyurethane or polyamide strut); insulating glass units including laminated inboard lites for safety and accessibility; AAMA AW, CW, and LC class performance under the North American Fenestration Standard (NAFS); air infiltration, water penetration, structural load, thermal, and acoustic performance; anodized and organic-coated aluminum finishes; perimeter anchorage and air/water seal continuity to adjacent envelope assemblies; installation, field testing under AAMA 502 and 503, cleaning, and warranty.
− Not intended for: Unitized or stick-built curtain walls extending more than one story or carrying floor-edge dead load; window walls structurally supported between floor slabs as part of a multi-story exterior wall (curtain wall specifications apply); structural glass walls with point-supported fittings; all-glass entrance assemblies without aluminum framing; automatic sliding or swinging entrance operators (see operator specifications); revolving doors; overhead coiling grilles or service doors; aluminum windows in punched openings within a separate exterior wall assembly (operable aluminum windows are a separate scope); hollow metal and wood door openings in interior partitions (see [[sync/doors-frames-and-hardware]]); blast-resistant or forced-entry-rated entrance systems requiring project-specific engineered designs beyond the scope of this standard.
−---
−
−# Scope {toc}
−
−## This standard governs the furnishing and installation of thermally broken extruded aluminum entrance and storefront systems for the ground-floor and perimeter glazing of commercial, institutional, and light industrial buildings. {note}
−
−## The scope includes the storefront framing assembly, the swing entrance doors (medium-stile, wide-stile, and narrow-stile) and their hardware, the insulating glass infill, thermal break construction, perimeter anchorage, and the air and water seal interfaces with adjacent envelope assemblies.
−
−## The storefront elevations, door schedules, mullion locations, transom and sidelight configurations, glass types, and hardware sets shall be [[drawing: as indicated on the contract drawings]].
−
−## This standard establishes minimum performance, material, fabrication, and installation requirements applicable to all of those conditions.
−
−## The Contractor shall treat the storefront as a single coordinated system, and the Architect, structural engineer, glazing trade, and adjacent envelope trades shall coordinate submittals so that all performance criteria are reconciled before fabrication begins.
−
−## An entrance and storefront assembly must simultaneously satisfy structural, thermal, water-control, air-control, fire-egress, accessibility, and durability requirements, and each performance category cross-couples to the others.
−
−## A deeper thermal break that improves U-factor may require a different anchor preparation; a higher design pressure may require thicker glass or a heavier framing depth that changes the door stile width; a laminated inboard lite specified for ADA safety changes the IGU weight and therefore the hardware torque requirements. {note}
−
−## Coordination with Adjacent Work {toc}
−
−### Coordinate this work with [[sync/doors-frames-and-hardware]] for hardware finish coordination across the building and for hollow metal and wood door openings in the interior partitions adjacent to entrances.
−
−### Coordinate this work with [[sync/building-thermal-insulation]] for the continuity of the building thermal envelope at the head, jamb, and sill of the storefront.
−
−### Coordinate this work with [[sync/sheet-metal-flashing-and-trim]] for the head flashing, sill pan flashing, end dams, and any sheet metal closure or counterflashing required at the storefront perimeter.
−
−### Coordinate this work with the air barrier and fluid-applied waterproofing trades for continuity of the air and water control layers across the rough opening.
−
−# Referenced Standards {toc}
−
−## Materials, fabrication, performance testing, and installation shall comply with the latest adopted edition of the referenced standards listed below.
−
−## Where the contract documents or the adopted building code impose more stringent requirements than a referenced standard, the more stringent requirement shall govern.
−
−## The Contractor shall resolve conflicts in writing with the Engineer of Record before proceeding.
−
−## Standards List {toc}
−
−| Standard | Title |
−|----------|-------|
−| AAMA/WDMA/CSA 101/I.S.2/A440 | North American Fenestration Standard (NAFS) — Specification for Windows, Doors, and Skylights |
−| AAMA CW-13 | Structural Properties of Glass for Windows in Buildings |
−| AAMA 501 | Methods of Test for Exterior Walls |
−| AAMA 501.2 | Quality Assurance and Diagnostic Water Leakage Field Check of Installed Storefronts, Curtain Walls, and Sloped Glazing Systems |
−| AAMA 501.4 | Recommended Static Test Method for Evaluating Curtain Wall and Storefront Systems Subjected to Seismic and Wind Induced Inter-story Drifts |
−| AAMA 502 | Voluntary Specification for Field Testing of Newly Installed Fenestration Products |
−| AAMA 503 | Voluntary Specification for Field Testing of Newly Installed Storefronts, Curtain Walls, and Sloped Glazing Systems |
−| AAMA 611 | Voluntary Specification for Anodized Architectural Aluminum |
−| AAMA 612 | Voluntary Specification, Performance Requirements and Test Procedures for Combined Coatings of Anodic Oxide and Transparent Organic Coatings on Architectural Aluminum |
−| AAMA 2603 | Voluntary Specification, Performance Requirements and Test Procedures for Pigmented Organic Coatings on Aluminum Extrusions and Panels |
−| AAMA 2604 | Voluntary Specification, Performance Requirements and Test Procedures for High Performance Organic Coatings on Aluminum Extrusions and Panels |
−| AAMA 2605 | Voluntary Specification, Performance Requirements and Test Procedures for Superior Performing Organic Coatings on Aluminum Extrusions and Panels |
−| AAMA TIR-A8 | Structural Performance of Composite Thermal Barrier Framing Systems |
−| ASTM B221 | Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes |
−| ASTM E283 | Standard Test Method for Determining Rate of Air Leakage Through Exterior Windows, Curtain Walls, and Doors Under Specified Pressure Differences |
−| ASTM E330 | Standard Test Method for Structural Performance of Exterior Windows, Doors, Skylights, and Curtain Walls by Uniform Static Air Pressure Difference |
−| ASTM E331 | Standard Test Method for Water Penetration of Exterior Windows, Skylights, Doors, and Curtain Walls by Uniform Static Air Pressure Difference |
−| ASTM E547 | Standard Test Method for Water Penetration of Exterior Windows, Skylights, Doors, and Curtain Walls by Cyclic Static Air Pressure Difference |
−| ASTM E1105 | Standard Test Method for Field Determination of Water Penetration of Installed Exterior Windows, Skylights, Doors, and Curtain Walls, by Uniform or Cyclic Static Air Pressure Difference |
−| ASTM E1886 | Standard Test Method for Performance of Exterior Windows, Curtain Walls, Doors, and Impact Protective Systems Impacted by Missile(s) and Exposed to Cyclic Pressure Differentials |
−| ASTM E1996 | Standard Specification for Performance of Exterior Windows, Curtain Walls, Doors, and Impact Protective Systems Impacted by Windborne Debris in Hurricanes |
−| ASTM E2190 | Standard Specification for Insulating Glass Unit Performance |
−| ASTM C1036 | Standard Specification for Flat Glass |
−| ASTM C1048 | Standard Specification for Heat-Strengthened and Fully Tempered Flat Glass |
−| ASTM C1172 | Standard Specification for Laminated Architectural Flat Glass |
−| ASTM C1376 | Standard Specification for Pyrolytic and Vacuum Deposition Coatings on Flat Glass |
−| ASTM C920 | Standard Specification for Elastomeric Joint Sealants |
−| NFRC 100 | Procedure for Determining Fenestration Product U-factors |
−| NFRC 200 | Procedure for Determining Fenestration Product Solar Heat Gain Coefficient and Visible Transmittance at Normal Incidence |
−| ICC A117.1 | Accessible and Usable Buildings and Facilities |
−| ANSI/BHMA A156.4 | Standard for Door Closers and Pivots |
−| ANSI/BHMA A156.3 | Standard for Exit Devices |
−| ANSI/BHMA A156.16 | Standard for Auxiliary Hardware (including push/pull and offset pulls) |
−| IGCC/IGMA | Insulating Glass Certification Council / Insulating Glass Manufacturers Alliance — IGU certification |
−| GANA Glazing Manual | Glass Association of North America — Glazing Manual |
−| IBC Chapter 24 | International Building Code — Glass and Glazing |
−| IBC Chapter 10 | International Building Code — Means of Egress (door clearance, opening force, panic hardware) |
−
−# Submittals {toc}
−
−## Action Submittals {toc}
−
−### The following submittals shall be submitted for review and returned before procurement or fabrication begins.
−
−### Storefront, glazing, door, and hardware submittals shall be coordinated into a single review package so that framing depths, door stile widths, IGU thicknesses, and hardware preparations are reconciled against one another before any product is ordered.
−
−### Storefront shop drawings shall provide elevations of every storefront condition, drawn to scale, with all mullion locations, door locations, transom and mid-rail lines, glass type designations keyed by lite, glass thicknesses, dimensions of all framing members, and dimensions of all rough openings.
−
−### Storefront shop drawing section details shall be provided at the head, jamb, sill, intermediate horizontals, intermediate verticals, door head, door jamb, door sill (threshold), and at every transition to an adjacent envelope assembly, and shall show the thermal break, the gasket compression at glazing pockets, the perimeter sealant joints, the anchor type and location, and the air and water control layer continuity.
−
−### Door and hardware shop drawings shall provide elevations of every door type indicating stile and rail dimensions, door size, hand, swing direction, hardware preparation locations, and glazing, together with a complete hardware schedule organized by hardware set number identifying each product by function, ANSI/BHMA grade, finish (BHMA three-digit code), and applicable listing.
−
−### The hardware supplier shall provide a letter of compliance confirming the schedule meets ICC A117.1 / ADA, IBC means of egress, and any panic hardware requirements for the occupancy and occupant load.
−
−### Structural calculations for the storefront framing and anchorage shall be signed and sealed by a professional engineer licensed in the project jurisdiction, demonstrating compliance with the design pressures established in the project structural drawings, and shall address mullion spans, mullion deflection limits, glass thickness selection per AAMA CW-13, and anchor capacity at every anchor type and condition.
−
−### Where the storefront is supported between concrete or steel structure with inter-story movement, calculations shall demonstrate accommodation of building movement without compromising air, water, or structural performance.
−
−### Manufacturer's published product data shall be submitted for the framing system, doors, gaskets, sealants, thermal break material, and finish, including the system's NAFS performance class, design pressure rating, and results of laboratory testing per ASTM E283, E331, E330, and any applicable impact testing per ASTM E1886/E1996.
−
−### An Insulating Glass Unit (IGU) submittal shall be provided for each glass type, indicating the outboard lite (thickness, heat treatment, coating type and surface), spacer type and material (warm-edge required where indicated), primary and secondary seal materials, inert gas fill (argon, krypton, or air), and the inboard lite (thickness, heat treatment, laminated interlayer where applicable), with the IGU manufacturer's IGCC/IGMA certification included.
−
−### Thermal and solar performance reports shall be submitted, providing NFRC 100 U-factor, NFRC 200 SHGC and VLT, and condensation resistance factor (CRF) for the complete fenestration product as required by the energy compliance documentation.
−
−### Component-level calculations shall not substitute for whole-product NFRC ratings where the energy code requires certified ratings.
−
−### Finish samples of each finish, minimum 12 in. by 12 in., shall be submitted on the actual extrusion profile or on a representative profile of equivalent thickness, demonstrating color, gloss, and finish quality.
−
−### For anodized finishes, samples shall be from the anodizing batch run for the project or shall demonstrate the manufacturer's typical color range so that lot-to-lot color variation can be evaluated.
−
−### For organic-coated finishes, samples shall be on a section of the actual extrusion profile to be furnished.
−
−### Where mock-up testing is required, mock-up test reports shall be submitted, including the results of laboratory and field testing performed on the project mock-up and any deficiencies identified and corrective actions taken before production fabrication releases.
−
−### Action Submittals Datasheet {toc}
−
−```datasheet
−label: Action Submittals Required
−type: checkbox
−options:
− - "Storefront shop drawings (elevations and details)"
− - "Door and hardware shop drawings with hardware schedule"
− - "Structural calculations signed and sealed by licensed PE"
− - "Manufacturer's product data with NAFS performance class"
− - "IGU make-up submittal with IGCC/IGMA certification"
− - "NFRC 100/200 U-factor, SHGC, and VLT reports"
− - "Condensation resistance factor (CRF) report"
− - "Finish samples on actual or equivalent extrusion profile"
− - "Mock-up test reports (where mock-up required)"
−default: "Storefront shop drawings (elevations and details)"
−```
−
−## Closeout Submittals {toc}
−
−### At substantial completion the Contractor shall provide the following closeout submittals before final acceptance:
−- Final as-built storefront and door schedules reflecting any field changes
−- Field test reports per AAMA 502 (window/door units) or AAMA 503 (storefront/curtain wall systems) where field testing was performed
−- Cleaning and maintenance instructions for the framing finish, glass, gaskets, sealants, and hardware, including the manufacturer's recommended cleaning products and any products that shall not be used on the finish
−- Warranty documentation from the framing manufacturer, the IGU manufacturer, the sealant manufacturer, and the door hardware supplier
−- Spare parts inventory turned over to the Owner, including weatherstripping, door closer adjustment tools, and any specialty fasteners required for hardware adjustment
−
−```datasheet
−label: Closeout Submittals Required
−type: checkbox
−options:
− - "As-built storefront and door schedules"
− - "AAMA 502 or 503 field test reports"
− - "Cleaning and maintenance instructions"
− - "Framing finish warranty (anodized or organic coating)"
− - "IGU warranty (minimum 10 years against seal failure)"
− - "Sealant warranty"
− - "Door hardware warranty"
− - "Spare parts inventory turnover to Owner"
−default: "As-built storefront and door schedules"
−```
−
−# Quality Assurance {toc}
−
−## Manufacturer and Fabricator Qualifications {toc}
−
−### The storefront framing manufacturer shall demonstrate a minimum of ten years of continuous production of thermally broken aluminum entrance and storefront systems of the performance class specified.
−
−### The manufacturer shall provide independent laboratory test reports for the specific framing system indicating compliance with the NAFS performance class designation indicated on the drawings.
−
−### The fabricator and installer (which may be the same firm) shall demonstrate a minimum of five years of experience installing the specific framing system or an equivalent thermally broken storefront system of the same NAFS class.
−
−### For projects with impact-rated requirements, projects in hurricane wind-borne debris zones, or projects with blast-resistance requirements, the installer shall demonstrate prior project experience with assemblies of equivalent performance.
−
−### The glazing contractor shall employ glaziers certified or trained by the framing system manufacturer for the specific glazing pocket configurations, gasket types, and structural silicone applications (if applicable) used on the project.
−
−## Mock-Up {toc}
−
−```datasheet
−label: Storefront Mock-Up Required
−type: select
−options:
− - "Not required"
− - "Visual mock-up — color, finish, and glass type confirmation only"
− - "Visual mock-up plus AAMA 501 chamber test (laboratory testing of mock-up)"
− - "Field mock-up — typical bay installed in place and field tested per AAMA 502/503"
− - "Field mock-up plus AAMA 501.4 inter-story drift test (seismic regions)"
−default: "Visual mock-up — color, finish, and glass type confirmation only"
−```
−
−### Where a mock-up is required, it shall be installed at a location acceptable to the Architect and shall include all components of a typical bay — framing, glass, door (if a door is in the typical bay), perimeter sealants, anchorage, and transitions to adjacent envelope assemblies — so that the air and water control layers can be evaluated as a complete system.
−
−### Field test results on the mock-up are the basis for accepting the system for production installation, and deficiencies identified in the mock-up shall be corrected and re-tested before production work proceeds.
−
−## NAFS Class and Performance Grade {toc}
−
−### The storefront and entrance system shall be classified per AAMA/WDMA/CSA 101/I.S.2/A440 (NAFS), which classifies products by performance class and design pressure, denoted as "Class-Performance Grade" (for example, CW-PG50).
−
−### The storefront and entrance system shall be tested, rated, and labeled per AAMA/WDMA/CSA 101/I.S.2/A440 (NAFS).
−
−### NAFS class is determined by intended end-use and minimum performance requirements; the performance grade (PG) is the design pressure rating in psf at which the product has been tested. {note}
−
−### NAFS Performance Class {toc}
−
−```datasheet
−label: NAFS Performance Class
−type: select
−drawing_ref: true
−options:
− - "R — Residential (not appropriate for commercial storefronts)"
− - "LC — Light Commercial (low-rise commercial, limited public access)"
− - "CW — Commercial (standard ground-floor commercial storefronts, mid-rise)"
− - "AW — Architectural (high-traffic public entrances, institutional, high-rise commercial)"
−default: "CW — Commercial (standard ground-floor commercial storefronts, mid-rise)"
−```
−
−### CW class is the appropriate default for ground-floor commercial storefronts in retail, office, and similar mid-rise applications where moderate-to-high cycle traffic is expected and the building height is below approximately 80 feet. {note}
−
−### AW class shall be specified for high-traffic public entrances such as airports, transit hubs, hospitals, large public buildings, and any storefront on a high-rise building where wind loads and life-cycle durability require the highest performance tier.
−
−### LC class is appropriate only for low-traffic light commercial applications and shall not be used for buildings with continuous public entry.
−
−### NAFS Performance Grade (Design Pressure) {toc}
−
−```datasheet
−label: NAFS Performance Grade (Design Pressure)
−type: range
−unit: psf
−options:
− min: 15
− max: 100
− setpoints: [15, 20, 25, 30, 40, 50, 60, 70, 80, 100]
−drawing_ref: true
−default: 40
−```
−
−### The design pressure shall be derived from the project structural drawings and the building code wind load determination for the project location, height, and exposure category.
−
−### The design pressure used for the storefront shall be no less than the larger of the positive and negative pressures at the storefront's elevation.
−
−### Coastal projects shall coordinate the design pressure with the impact testing requirements below, and hurricane-zone and high-exposure projects routinely require design pressures of 60 psf or more.
−
−# Performance Requirements {toc}
−
−## Structural — Wind Load and Deflection {toc}
−
−### The storefront framing shall withstand the design positive and negative wind pressures without permanent deformation, glass breakage, anchor failure, or loss of air or water seal.
−
−### Testing per ASTM E330 shall be performed at 1.5 times the design pressure for one minute without permanent deformation in any framing member exceeding 0.2 percent of the member span.
−
−### Framing deflection under the design wind load shall not exceed L/175 of the clear span of any framing member, or 3/4 inch, whichever is smaller, where L is the unsupported span between supports.
−
−### For framing members supporting glass, deflection shall not exceed L/175 or the maximum deflection permitted by the glass thickness and span per AAMA CW-13, whichever is less.
−
−### Excessive deflection causes gasket compression loss, glazing pocket leakage, and visible "oil-canning" of the framing finish. {note}
−
−### Framing Deflection Limit Under Design Wind Load {toc}
−
−```datasheet
−label: Framing Deflection Limit Under Design Wind Load
−type: radio
−options:
− - "L/175 or 3/4 in., whichever is smaller (standard NAFS requirement)"
− - "L/240 or 1/2 in., whichever is smaller (stricter, large lite or curtain-wall-adjacent applications)"
− - "Per project structural specifications"
−default: "L/175 or 3/4 in., whichever is smaller (standard NAFS requirement)"
−```
−
−## Air Infiltration {toc}
−
−### Air infiltration through the storefront framing, doors, and operable joints shall be tested per ASTM E283 at a static pressure differential of 6.24 psf (equivalent to 50 mph wind).
−
−### Air infiltration through the fixed framing (excluding door operating joints) shall not exceed 0.06 cfm per square foot of fixed area.
−
−### Air infiltration through the swing entrance door (measured separately at the door operating perimeter) shall not exceed 1.0 cfm per linear foot of crack length.
−
−### Air Infiltration — Fixed Framing (ASTM E283 at 6.24 psf) {toc}
−
−```datasheet
−label: Air Infiltration — Fixed Framing (ASTM E283 at 6.24 psf)
−type: range
−unit: cfm/sf
−options:
− min: 0.01
− max: 0.10
− setpoints: [0.01, 0.03, 0.06, 0.10]
−default: 0.06
−```
−
−```datasheet
−label: Air Infiltration — Swing Entrance Door (ASTM E283 at 6.24 psf)
−type: range
−unit: cfm/linear ft of crack
−options:
− min: 0.3
− max: 1.5
− setpoints: [0.3, 0.5, 1.0, 1.5]
−default: 1.0
−```
−
−### Swing entrance doors have inherently higher air leakage than fixed framing because they require operating clearances at the perimeter weatherstrip. {note}
−
−### Where lower air infiltration is required (vestibule applications, high-performance envelope, certified passive house projects), an automatic door bottom (sweep drop seal) and full-perimeter compression weatherstripping shall be specified.
−
−### Where lower air infiltration is required, the vestibule shall be detailed so that the inner and outer doors are not open simultaneously under normal traffic flow.
−
−## Water Penetration {toc}
−
−### Water penetration testing shall be performed per ASTM E331 (static) and ASTM E547 (cyclic) at a test pressure equal to 20 percent of the design wind pressure (positive), with a minimum test pressure of 6.24 psf and a typical maximum of 15 psf.
−
−### No uncontrolled water shall pass beyond the interior face of the framing during the test period.
−
−### Water that enters the glazing pocket or framing internal cavities shall drain to the exterior via weep slots and shall not be visible on the interior face.
−
−### Water Penetration Test Pressure (ASTM E331/E547) {toc}
−
−```datasheet
−label: Water Penetration Test Pressure (ASTM E331/E547)
−type: range
−unit: psf
−options:
− min: 6.24
− max: 20
− setpoints: [6.24, 8, 10, 12, 15, 20]
−default: 8
−```
−
−### Field water testing of installed storefronts shall be performed per ASTM E1105 or AAMA 503 at a pressure equal to two-thirds of the laboratory-tested pressure (a typical 8 psf laboratory test corresponds to approximately 5 psf field test).
−
−### Diagnostic water leakage checking per AAMA 501.2 (calibrated spray nozzle, no chamber) may be used to identify the location of leaks during construction but does not substitute for AAMA 503 chamber testing where the contract documents require certified field testing.
−
−## Thermal Performance {toc}
−
−### The complete fenestration product (framing plus glazing) shall meet the U-factor, SHGC, and VLT requirements indicated on the energy compliance documentation, certified per NFRC 100 and NFRC 200.
−
−### Whole-Product U-Factor (NFRC 100) {toc}
−
−```datasheet
−label: Whole-Product U-Factor (NFRC 100)
−type: range
−unit: Btu/h·sf·°F
−options:
− min: 0.25
− max: 0.65
− setpoints: [0.25, 0.30, 0.35, 0.40, 0.45, 0.50, 0.55, 0.60, 0.65]
−drawing_ref: true
−default: 0.45
−```
−
−```datasheet
−label: Solar Heat Gain Coefficient (NFRC 200)
−type: range
−unit: SHGC (unitless)
−options:
− min: 0.20
− max: 0.55
− setpoints: [0.20, 0.25, 0.30, 0.35, 0.40, 0.45, 0.50, 0.55]
−drawing_ref: true
−default: 0.30
−```
−
−```datasheet
−label: Visible Light Transmittance (NFRC 200)
−type: range
−unit: VLT (unitless)
−options:
− min: 0.30
− max: 0.75
− setpoints: [0.30, 0.40, 0.50, 0.60, 0.70, 0.75]
−drawing_ref: true
−default: 0.50
−```
−
−### The U-factor of a thermally broken aluminum storefront with a high-performance IGU (low-e coating, argon fill, warm-edge spacer, dual or triple glazing) typically ranges from 0.35 to 0.50 Btu/h·sf·°F, and achieving U-factors below 0.35 generally requires triple glazing or a high-performance polyamide strut thermal break with a thicker framing depth. {note}
−
−### The SHGC and VLT are governed by the IGU coating selection; a single low-e coating on surface 2 (outboard of the cavity) provides a moderate SHGC with high VLT, while higher-performance solar-control coatings reduce SHGC at the cost of slightly reduced VLT. {note}
−
−### The Architect shall confirm that the SHGC and VLT targets are achievable simultaneously with the U-factor target before the IGU make-up is finalized.
−
−## Condensation Resistance {toc}
−
−```datasheet
−label: Condensation Resistance Factor (CRF) Minimum
−type: range
−unit: CRF
−options:
− min: 45
− max: 80
− setpoints: [45, 55, 65, 70, 75, 80]
−default: 65
−```
−
−### Condensation Resistance Factor (CRF) measures the framing and IGU's resistance to interior surface condensation under cold-climate conditions; CRF below approximately 55 indicates a high risk of interior condensation on the framing edges in cold climates, while CRF of 65 or higher is appropriate for most heated commercial applications in climate zones 5 through 7. {note}
−
−### Buildings with high interior humidity (natatoriums, ice arenas, hospitals, food processing) shall require CRF of 70 or higher and shall be reviewed against the project's interior dew point with the framing manufacturer.
−
−## Acoustic Performance {toc}
−
−### Where acoustic performance is required by the contract documents (transit-adjacent projects, hospitality, residential mixed-use, healthcare), the storefront assembly shall meet the specified Sound Transmission Class (STC) or Outdoor-Indoor Transmission Class (OITC) rating, tested per ASTM E90 and rated per ASTM E413 (STC) or ASTM E1332 (OITC).
−
−### Acoustic performance is driven primarily by the IGU make-up — asymmetric laminated lites, larger air spaces, and acoustic interlayers can achieve STC values of 38 to 45 in standard storefront framing, while STC values above 45 generally require an integrated double-glazed-window-with-laminate-and-large-airspace assembly that may exceed the depth of standard storefront framing. {note}
−
−### Acoustic Rating Required {toc}
−
−```datasheet
−label: Acoustic Rating Required
−type: select
−drawing_ref: true
−options:
− - "Not required — no acoustic specification"
− - "STC 30–35 (light noise control, basic urban applications)"
− - "STC 36–40 (moderate, hospitality, healthcare)"
− - "STC 41–45 (transit-adjacent, music venues, recording-quality)"
− - "OITC rating — exterior noise (aircraft, traffic) — see specifications"
−default: "Not required — no acoustic specification"
−```
−
−## Impact and Wind-Borne Debris Resistance {toc}
−
−### For projects located in hurricane wind-borne debris zones as designated by the IBC or by the AHJ, the storefront and glazing shall be tested per ASTM E1886 (impact and cyclic pressure protocol) and shall comply with the performance requirements of ASTM E1996 for the applicable wind zone (Zone 1 through Zone 4).
−
−### Two impact-resistance categories are relevant: large missile (typically used at openings within 30 feet of grade) and small missile (used at higher elevations on tall buildings). {note}
−
−### Impact / Wind-Borne Debris Requirement {toc}
−
−```datasheet
−label: Impact / Wind-Borne Debris Requirement
−type: select
−options:
− - "Not required — project is not in a wind-borne debris zone"
− - "Required — ASTM E1996 small missile (high-rise locations above 30 ft)"
− - "Required — ASTM E1996 large missile (ground-floor entrances in hurricane zones)"
− - "Required — ASTM E1996 large missile plus enhanced design pressure for hurricane zones"
−default: "Not required — project is not in a wind-borne debris zone"
−```
−
−### Impact-resistant storefronts require laminated glass in both lites of the IGU (or a laminated inboard lite with a tempered outboard lite per the impact testing report), a stiffer framing system to retain the IGU under cyclic loading after impact, and structural perimeter anchorage.
−
−### Impact-resistance testing is performed on the specific framing system with the specific glass type and shall not be transferred between systems.
−
−### Substitutions of glass type or framing component in impact-rated assemblies shall not be made without an updated test report from the framing manufacturer.
−
−## Seismic and Inter-story Drift {toc}
−
−### For projects in high seismic zones or for storefronts that span between floor slabs or between concrete columns with significant inter-story drift, the storefront framing and anchorage shall accommodate the design inter-story drift without glass breakage or loss of perimeter seal.
−
−### Testing per AAMA 501.4 establishes the static drift the system can accommodate.
−
−### Standard storefront anchorage typically accommodates drift of 1/2 inch in either horizontal direction; high-drift designs require slotted anchors, oversized perimeter joints, or articulated framing connections. {note}
−
−### Inter-Story Drift Accommodation Required {toc}
−
−```datasheet
−label: Inter-Story Drift Accommodation Required
−type: radio
−options:
− - "Not applicable — storefront is supported on slab-on-grade or single-story structure"
− - "Standard — up to 1/2 in. drift in either direction with slotted anchors"
− - "Enhanced — drift greater than 1/2 in., AAMA 501.4 test required"
−default: "Standard — up to 1/2 in. drift in either direction with slotted anchors"
−```
−
−# Aluminum Extrusions {toc}
−
−## Aluminum extrusions for framing members, door stiles, rails, mullion caps, and pressure plates shall conform to ASTM B221, alloy 6063 in temper T5 or T6 as appropriate to the structural and finishing requirements of each profile.
−
−## Temper T6 shall be used for structural mullions, transom bars, and door stiles that carry hardware loads; temper T5 is acceptable for non-structural pressure plates, glass stops, and trim.
−
−## Minimum wall thickness for primary structural members shall be 0.080 in. (2.0 mm).
−
−## Minimum wall thickness for non-structural trim shall be 0.062 in. (1.6 mm).
−
−## Aluminum Alloy and Temper {toc}
−
−```datasheet
−label: Aluminum Alloy and Temper
−type: radio
−options:
− - "6063-T5 (non-structural trim, glass stops, pressure plates)"
− - "6063-T6 (structural framing, door stiles, rails, transoms)"
− - "Mixed — T6 for structural, T5 for trim (as required by member function)"
−default: "Mixed — T6 for structural, T5 for trim (as required by member function)"
−```
−
−# Thermal Break {toc}
−
−## Thermally broken framing members shall use one of the following thermal-barrier methods, as selected by the Architect and confirmed in the framing manufacturer's submittal.
−
−```datasheet
−label: Thermal Break Type
−type: select
−drawing_ref: true
−options:
− - "Poured-and-debridged polyurethane — liquid polymer poured into raceway and debridged after cure"
− - "Polyamide strut — pultruded glass-reinforced polyamide nylon strut mechanically crimped into raceways"
− - "Composite extrusion — co-extruded thermoplastic between aluminum profiles"
−default: "Polyamide strut — pultruded glass-reinforced polyamide nylon strut mechanically crimped into raceways"
−```
−
−## Polyamide strut thermal breaks (typically 24 mm to 40 mm wide glass-fiber-reinforced polyamide) provide superior thermal performance, higher structural shear transfer between the interior and exterior aluminum profiles, and better fire performance compared to poured-and-debridged polyurethane. {note}
−
−## Polyamide strut systems also accommodate dual-color finishes (different interior and exterior colors) more reliably than poured-and-debridged systems because the two aluminum halves are finished independently before assembly. {note}
−
−## Poured-and-debridged systems are acceptable for standard CW-class storefronts where the U-factor and CRF requirements are moderate and dual-color finishing is not required. {note}
−
−## Thermal Break Width (Polyamide Strut Systems) {toc}
−
−```datasheet
−label: Thermal Break Width (Polyamide Strut Systems)
−type: range
−unit: mm
−options:
− min: 16
− max: 60
− setpoints: [16, 24, 28, 32, 36, 40, 60]
−default: 24
−```
−
−## A wider polyamide strut yields a lower whole-product U-factor at the cost of a deeper framing profile and higher framing cost; a 24 mm strut is typical for CW-class systems targeting U-factors of approximately 0.42 to 0.48, while a 32 mm or 40 mm strut is typical for high-performance applications targeting U-factors below 0.38. {note}
−
−## The thermal break dimension shall be confirmed against the U-factor and CRF requirements of the project.
−
−# Glass and Insulating Glass Units (IGU) {toc}
−
−## Glass shall conform to ASTM C1036 (flat annealed), ASTM C1048 (heat-strengthened or fully tempered), or ASTM C1172 (laminated).
−
−## Where heat treatment is specified, tempered glass shall be heat-soak tested to reduce the risk of nickel sulfide spontaneous breakage.
−
−## Coatings shall conform to ASTM C1376, and the coating type and surface location shall be indicated on the IGU submittal.
−
−## Outboard Lite — Heat Treatment {toc}
−
−```datasheet
−label: Outboard Lite — Heat Treatment
−type: select
−drawing_ref: true
−options:
− - "Annealed (low-traffic, no impact, no safety-glazing condition)"
− - "Heat-strengthened (typical exterior, resists thermal stress)"
− - "Fully tempered (safety-glazing locations per IBC 2406, doors, sidelights, low railings)"
− - "Heat-strengthened with ceramic frit (spandrel applications, decorative)"
−default: "Heat-strengthened (typical exterior, resists thermal stress)"
−```
−
−```datasheet
−label: Inboard Lite — Heat Treatment and Lamination
−type: select
−drawing_ref: true
−options:
− - "Annealed (only where safety glazing not required)"
− - "Heat-strengthened (typical non-safety-glazing locations)"
− - "Fully tempered (safety glazing — doors, sidelights, low locations)"
− - "Laminated — heat-strengthened plies with PVB interlayer (safety, acoustic, security)"
− - "Laminated — tempered plies with SGP interlayer (high-strength laminated, hurricane zones)"
−default: "Laminated — heat-strengthened plies with PVB interlayer (safety, acoustic, security)"
−```
−
−## Laminated inboard lites are increasingly the default for accessible-route storefront glazing because the laminated lite remains in the frame after breakage, preserves the air seal of the IGU, and reduces the hazard to occupants compared to a tempered monolithic lite that disintegrates into a curtain of cullet. {note}
−
−## For impact-rated assemblies, laminated lites are required.
−
−## For non-impact applications, laminated inboard lites are recommended at all ground-floor and accessible-route locations even where not required by code.
−
−## IGU Make-Up {toc}
−
−```datasheet
−label: IGU Make-Up
−type: select
−drawing_ref: true
−options:
− - "Double-glazed (two lites with single airspace)"
− - "Triple-glazed (three lites with two airspaces) — high-performance, cold climates"
−default: "Double-glazed (two lites with single airspace)"
−```
−
−```datasheet
−label: IGU Airspace Thickness
−type: range
−unit: inches
−options:
− min: 0.25
− max: 0.75
− setpoints: [0.25, 0.375, 0.50, 0.625, 0.75]
−drawing_ref: true
−default: 0.50
−```
−
−```datasheet
−label: IGU Cavity Gas Fill
−type: radio
−options:
− - "Air (standard, lowest cost, modest thermal performance)"
− - "Argon (typical specification, ~10% U-factor improvement, low cost premium)"
− - "Krypton (high-performance, smaller airspace applications)"
−default: "Argon (typical specification, ~10% U-factor improvement, low cost premium)"
−```
−
−```datasheet
−label: IGU Spacer Type
−type: radio
−options:
− - "Aluminum spacer (lowest cost, highest edge conductance, condensation risk at edge)"
− - "Warm-edge stainless steel spacer (moderate improvement)"
− - "Warm-edge structural foam or thermoplastic spacer (best CRF, recommended)"
−default: "Warm-edge structural foam or thermoplastic spacer (best CRF, recommended)"
−```
−
−## Warm-edge spacers (stainless steel, thermoplastic, or structural foam) significantly improve the condensation resistance at the IGU edge and modestly improve the whole-product U-factor compared to traditional aluminum box spacers. {note}
−
−## Warm-edge spacers shall be specified for all projects in climate zones 5 through 8 and for any project where CRF of 65 or higher is required.
−
−## Low-Emissivity Coating Surface (Numbered from Exterior) {toc}
−
−```datasheet
−label: Low-Emissivity Coating Surface (Numbered from Exterior)
−type: select
−drawing_ref: true
−options:
− - "Surface 2 (outboard lite, cavity side) — typical, high VLT, moderate SHGC"
− - "Surface 3 (inboard lite, cavity side) — heating-climate orientation, retains solar gain"
− - "Surface 2 + Surface 4 (dual low-e) — high-performance, cold climates"
− - "No low-e coating (clear glass only, where required)"
−default: "Surface 2 (outboard lite, cavity side) — typical, high VLT, moderate SHGC"
−```
−
−## The IGU manufacturer shall be certified by the Insulating Glass Certification Council (IGCC) or by the Insulating Glass Manufacturers Alliance (IGMA), with the certification confirmed by laboratory testing per ASTM E2190.
−
−## Field-glazed (site-fabricated) IGUs shall not be used; all IGUs shall be factory-fabricated and delivered to the site as sealed units.
−
−# Sealants and Gaskets {toc}
−
−## Glazing pocket gaskets shall be extruded EPDM or silicone with the durometer specified by the framing manufacturer for the glazing pocket configuration.
−
−## EPDM gaskets shall conform to ASTM C509 or ASTM C864 as appropriate.
−
−## Silicone gaskets shall be specified where high temperature exposure or extended UV exposure is anticipated.
−
−## Glazing Gasket Material {toc}
−
−```datasheet
−label: Glazing Gasket Material
−type: radio
−options:
− - "EPDM — standard, lowest cost, adequate for most applications"
− - "Silicone — high-temperature, UV-resistant, premium"
− - "TPE (thermoplastic elastomer) — engineered for specific framing system"
−default: "EPDM — standard, lowest cost, adequate for most applications"
−```
−
−## Perimeter sealants between the storefront frame and the adjoining construction shall be one-part or two-part silicone or polyurethane elastomeric sealant conforming to ASTM C920, Type S or M, Grade NS, Class 50 or 100 (movement capability).
−
−## The sealant manufacturer shall confirm compatibility with the framing finish, the adjacent substrate (concrete, brick, EIFS, metal panel), and any backer rod or bond breaker used in the joint.
−
−## Perimeter Sealant Type {toc}
−
−```datasheet
−label: Perimeter Sealant Type
−type: select
−options:
− - "Silicone — ASTM C920 Type S, Grade NS, Class 100/50 (highest movement, longest service life)"
− - "Polyurethane — ASTM C920 Type S, Grade NS, Class 35 (lower cost, paintable, moderate movement)"
− - "Polyether (hybrid) — ASTM C920, paintable, moderate UV resistance"
−default: "Silicone — ASTM C920 Type S, Grade NS, Class 100/50 (highest movement, longest service life)"
−```
−
−## Sealant joint width and depth shall comply with the sealant manufacturer's published joint design recommendations, with joint width sized to accommodate the calculated thermal movement of the framing relative to the adjoining construction.
−
−## Backer rod shall be closed-cell or open-cell polyethylene as specified by the sealant manufacturer.
−
−## Closed-cell backer rod shall not be used where the sealant manufacturer requires open-cell backer rod to prevent outgassing into the sealant joint.
−
−# Framing System Configuration {toc}
−
−## Framing Depth and Glazing Pocket {toc}
−
−```datasheet
−label: Framing System Nominal Depth
−type: select
−drawing_ref: true
−options:
− - "1-3/4 in (45 mm) — light commercial, single glazing or thin IGU, LC class"
− - "2 in (51 mm) — standard CW-class storefront, dual-glazed IGU up to 1 in. overall"
− - "2-1/2 in (64 mm) — heavy CW or AW class, larger IGUs, impact-rated systems"
− - "3 in (76 mm) or greater — AW class, high-performance, triple-glazed"
−default: "2 in (51 mm) — standard CW-class storefront, dual-glazed IGU up to 1 in. overall"
−```
−
−### A 2 in. nominal framing depth is the appropriate default for standard CW-class commercial storefronts with a 1 in. IGU and standard wind loads, while deeper framing (2-1/2 in. or 3 in.) is required for larger spans, higher design pressures, impact-rated assemblies, and triple-glazed IGUs. {note}
−
−### The framing depth shall be coordinated with the wall thickness, the head and sill flashing detail, and the door stile dimension before the system is finalized.
−
−## Center-Set, Front-Set, and Back-Set Glazing {toc}
−
−### The glazing pocket location within the framing depth defines the system as center-set, front-set, or back-set, which drives the relationship between the glass face and the framing face, the head and sill flashing detail, and the appearance of the system in elevation. {note}
−
−### Center-set is the typical default for standard commercial storefronts and provides a balanced appearance from both interior and exterior, front-set is used where the design requires a flush exterior face with a recessed interior reveal, and back-set is used in the inverse condition. {note}
−
−### The Architect shall confirm the glazing pocket location on the framing elevations and section details before submittal.
−
−```datasheet
−label: Glazing Pocket Location
−type: radio
−drawing_ref: true
−options:
− - "Center-set (glass centered in framing depth — symmetric flush appearance both sides)"
− - "Front-set (glass set toward exterior — recessed interior, flush exterior)"
− - "Back-set (glass set toward interior — recessed exterior, flush interior)"
−default: "Center-set (glass centered in framing depth — symmetric flush appearance both sides)"
−```
−
−## Mullion Spacing and Lite Size {toc}
−
−### Mullion spacing shall be [[drawing: as indicated on the storefront elevations]].
−
−### Maximum unsupported mullion height between supports at floor and roof shall be confirmed against the structural calculations for the design pressure and the framing manufacturer's published mullion span tables.
−
−### Vertical mullions in tall storefront elevations may require splice connections or supplemental steel reinforcing inside the mullion cavity for spans exceeding 12 to 14 feet at typical CW-class design pressures.
−
−### Mullion Reinforcing Required {toc}
−
−```datasheet
−label: Mullion Reinforcing Required
−type: radio
−drawing_ref: true
−options:
− - "Not required — standard 6063-T6 mullion adequate for span and design pressure"
− - "Steel tube reinforcement inside mullion cavity (specify dimensions)"
− - "Splice or intermediate support at floor or beam line"
−default: "Not required — standard 6063-T6 mullion adequate for span and design pressure"
−```
−
−### Maximum lite size shall be confirmed against AAMA CW-13 glass thickness tables for the design pressure and the IGU make-up.
−
−### Larger lites require thicker glass and may require heat treatment beyond annealed, and the IGU submittal shall reflect the largest lite dimensions on the project.
−
−# Entrance Doors {toc}
−
−## Door Stile Width {toc}
−
−### Swing entrance doors integrated with aluminum storefront framing are categorized by stile width, which drives the available hardware preparations, the door's structural rigidity, and the appearance in elevation. {note}
−
−### The entrance door stile width shall be specified, selected to suit the required hardware preparations, structural rigidity, and elevation appearance.
−
−```datasheet
−label: Entrance Door Stile Width
−type: select
−drawing_ref: true
−options:
− - "Narrow stile (2 to 2-1/2 in. stile) — minimal hardware, light traffic, retail boutiques"
− - "Medium stile (3-1/2 in. stile) — standard hardware, typical commercial entry, most common"
− - "Wide stile (5 in. stile) — heavy hardware, panic devices, high-traffic public entries"
−default: "Medium stile (3-1/2 in. stile) — standard hardware, typical commercial entry, most common"
−```
−
−### Wide-stile doors are the typical default for high-traffic public entrances, AW-class systems, and any door receiving a panic exit device, a heavy-duty closer, or both, because the wider stile provides the structural section required to support panic hardware mounting and the closer arm reaction without distortion of the door leaf over the door's service life. {note}
−
−### Medium-stile doors are appropriate for standard commercial entries with cylindrical or mortise locks and surface-mounted closers. {note}
−
−### Narrow-stile doors are appropriate only for light-traffic retail applications with minimal hardware; they do not accept panic devices and have limited closer mounting options. {note}
−
−## Door Construction {toc}
−
−### Door leaves shall be fabricated from extruded aluminum profiles of the same alloy and temper as the framing (6063-T6), with corner construction by mechanical mortise-and-tenon, screw spline, or welded joinery as specified by the manufacturer.
−
−### Corner construction shall be sealed to prevent water entry into the internal door cavity.
−
−### Door thickness shall match the framing depth at the door pocket so that the door operates within the framing without binding or excessive perimeter clearance.
−
−### Door Leaf Corner Construction {toc}
−
−```datasheet
−label: Door Leaf Corner Construction
−type: radio
−options:
− - "Mechanical mortise-and-tenon with sealed corners (typical, factory-assembled)"
− - "Screw spline with sealed corners (alternative mechanical assembly)"
− - "Welded corners (premium, AW-class, monolithic appearance)"
−default: "Mechanical mortise-and-tenon with sealed corners (typical, factory-assembled)"
−```
−
−## Door Glazing {toc}
−
−### Door glazing shall match the storefront IGU make-up unless specifically noted otherwise on the door schedule.
−
−### Door glass shall be fully tempered or laminated per IBC Chapter 24 safety glazing requirements.
−
−### Door glass that meets only heat-strengthened criteria does not comply with the safety glazing requirement and shall not be installed in entrance doors.
−
−### Door Glass — Safety Glazing {toc}
−
−```datasheet
−label: Door Glass — Safety Glazing
−type: radio
−options:
− - "Fully tempered IGU (both lites tempered) — typical, meets IBC 2406 safety glazing"
− - "Laminated inboard lite over tempered outboard — preferred for impact and acoustic"
− - "Fully tempered with laminated inboard — hurricane zones and impact-rated"
−default: "Fully tempered IGU (both lites tempered) — typical, meets IBC 2406 safety glazing"
−```
−
−## Mid-Rail {toc}
−
−### A mid-rail is a horizontal stiffening member crossing the door leaf at approximately the lockset height, dividing the glass into upper and lower lites. {note}
−
−### A mid-rail is required where the door receives a panic exit device, because the rail provides the mounting surface for the rim or mortise device housing.
−
−### A mid-rail is also commonly used to provide a kick-rail at the bottom of the door for protection against gurney, cart, or foot contact. {note}
−
−### Door Mid-Rail Configuration {toc}
−
−```datasheet
−label: Door Mid-Rail Configuration
−type: select
−drawing_ref: true
−options:
− - "No mid-rail — full glass door, narrow or medium stile, no panic device"
− - "Mid-rail at lockset height (panic device mounting)"
− - "Mid-rail at lockset height plus bottom rail at kick height (standard accessibility)"
− - "Full bottom rail only (no mid-rail) — alternative kick-protection arrangement"
−default: "Mid-rail at lockset height plus bottom rail at kick height (standard accessibility)"
−```
−
−## Door Clearances and Accessibility {toc}
−
−### Doors on accessible routes shall comply with ICC A117.1 and ADA requirements for clear opening width, maneuvering clearance, opening force, and threshold height.
−
−### The minimum clear opening width shall be 32 in. (measured between the face of the door at 90 degrees open and the opposite stop) per ICC A117.1 Section 404.2.3.
−
−### Threshold height shall not exceed 1/2 in. with the rise above 1/4 in. beveled at 1:2 slope per ICC A117.1 Section 303.
−
−### Door Clear Opening Width {toc}
−
−```datasheet
−label: Door Clear Opening Width
−type: range
−unit: inches
−options:
− min: 32
− max: 48
− setpoints: [32, 34, 36, 42, 48]
−drawing_ref: true
−default: 36
−```
−
−```datasheet
−label: Door Opening Force (Interior of Vestibule or Building Interior)
−type: range
−unit: lbf
−options:
− min: 3
− max: 15
− setpoints: [3, 5, 8.5, 15]
−default: 5
−```
−
−### For interior doors on accessible routes the opening force shall not exceed 5 lbf measured at the latch edge per ICC A117.1 Section 404.2.8.
−
−### The 5 lbf limit does not apply to forces required to overcome air pressure differentials at exterior doors, but the limit on the hardware-operable force still applies.
−
−### Where the exterior force exceeds the limit due to wind, stack pressure, or HVAC pressurization, the design shall consider a vestibule, an automatic operator, or a re-balanced building pressurization scheme rather than relaxing the hardware opening force.
−
−# Hardware {toc}
−
−## Hardware Sets and Coordination {toc}
−
−### Door hardware shall be grouped into hardware sets, each designated by a hardware set number on the storefront door schedule.
−
−### All openings sharing the same hardware set number shall receive identical hardware unless specifically noted otherwise.
−
−### The hardware schedule shall be prepared or reviewed by a certified architectural hardware consultant (AHC) and shall confirm that every hardware selection is compatible with the door stile width, the framing system, the fire and egress requirements of the opening, and the building's hardware finish.
−
−### Coordinate hardware finishes across entrance, storefront, and interior door openings per [[sync/doors-frames-and-hardware]] so that the building's hardware finish is uniform unless specifically scheduled otherwise.
−
−### Hardware Set Reference {toc}
−
−```datasheet
−label: Hardware Set Reference
−type: text
−drawing_ref: "door schedule"
−default: deferred
−```
−
−## Hinges and Pivots {toc}
−
−### Entrance doors integrated with aluminum storefront framing typically use either continuous (geared) hinges spanning the full door height or floor pivots and top pivots. {note}
−
−### Butt hinges (the standard for hollow metal and wood doors) are uncommon on aluminum entrances because of the door's structural section and the cycle-life demands of the application. {note}
−
−### Entrance Door Pivot or Hinge Type {toc}
−
−```datasheet
−label: Entrance Door Pivot or Hinge Type
−type: select
−drawing_ref: true
−options:
− - "Continuous geared hinge (full height, aluminum body with stainless pin)"
− - "Offset top pivot and floor closer/pivot combination"
− - "Center-hung floor closer/pivot with top pivot"
− - "Butt hinges (3 or 4 per leaf) — light-duty narrow-stile only"
−default: "Continuous geared hinge (full height, aluminum body with stainless pin)"
−```
−
−### Continuous geared hinges are the preferred standard for high-cycle commercial entrances because the hinge distributes the door weight along the full height of the leaf, eliminates door sag over time, and provides superior resistance to forced entry. {note}
−
−### Floor closers (closer mechanism concealed in the floor with a pivot bearing) are appropriate where the door's clean appearance is paramount (high-end retail, lobby entries) and provide hold-open and back-check functions; they require coordinated floor construction and are more expensive than surface closers. {note}
−
−## Closers {toc}
−
−```datasheet
−label: Door Closer Type
−type: select
−drawing_ref: true
−options:
− - "Surface-mounted overhead closer (standard, field-adjustable, lowest cost)"
− - "Concealed-in-transom closer (clean appearance, factory-set in transom bar)"
− - "Floor closer/pivot (concealed in floor, premium appearance, full closer functions)"
−default: "Surface-mounted overhead closer (standard, field-adjustable, lowest cost)"
−```
−
−### Closers shall conform to ANSI/BHMA A156.4-2024 and shall be sized for the door weight, width, and wind exposure.
−
−### The closer shall provide adjustable closing speed, latch speed, back-check, and (where required) delayed action functions.
−
−### The closer shall be adjusted at substantial completion so that the door opening force complies with the accessibility limits indicated above and the closer reliably latches the door at the close of the closing cycle even under back-pressure (interior negative pressure relative to exterior).
−
−### Door Closer Back-Check Required {toc}
−
−```datasheet
−label: Door Closer Back-Check Required
−type: radio
−options:
− - "Back-check required (resists opening beyond 70°–80°, protects wall and adjacent storefront)"
− - "No back-check (where door swing arc is fully clear)"
−default: "Back-check required (resists opening beyond 70°–80°, protects wall and adjacent storefront)"
−```
−
−## Exit Devices (Panic Hardware) {toc}
−
−```datasheet
−label: Exit Device Required
−type: select
−drawing_ref: true
−options:
− - "Not required (occupant load below 50, no panic hardware required by IBC)"
− - "Required — rim panic device (single door, standard)"
− - "Required — surface vertical rod device (pair of doors, top and bottom latching)"
− - "Required — concealed vertical rod device (pair of doors, clean appearance)"
− - "Required — concealed mortise device (single door, premium clean appearance)"
−default: "Not required (occupant load below 50, no panic hardware required by IBC)"
−```
−
−### Exit devices on aluminum entrances shall be specifically listed by the device manufacturer for use on aluminum stile entrance doors; not all panic devices are listed for narrow-stile or medium-stile aluminum entrances.
−
−### The device's strike preparation, mounting screws, and crossbar projection shall be coordinated against the door stile width before procurement.
−
−### Devices listed only for hollow metal or wood doors shall not be substituted on aluminum entrance doors without written confirmation from the device manufacturer.
−
−### Exit device outside trim (the trim engaged from the secure side of the door) shall be specified per the security requirements of the opening.
−
−### Where the building uses an access control system to control entry through the entrance, the outside trim shall be coordinated with the access control hardware (electric strike, electrified trim, or electrified panic device).
−
−### Exit Device Outside Trim {toc}
−
−```datasheet
−label: Exit Device Outside Trim
−type: select
−drawing_ref: true
−options:
− - "No outside trim — egress only, separate entry through adjacent door or access control"
− - "Key-retracts-latch — outside key cylinder operates latch"
− - "Outside lever trim — free entry from outside, no keying"
− - "Electrified outside trim — coordinates with access control system"
−default: "No outside trim — egress only, separate entry through adjacent door or access control"
−```
−
−## Locks and Cylinders {toc}
−
−### Where the entrance door is locked from the exterior without a panic device, the lock shall be a deadlock or hookbolt-style lock specifically engineered for aluminum stile doors.
−
−### Cylinders shall match the building's keying system, coordinated with the Owner's hardware standard and with [[sync/doors-frames-and-hardware]] for keying hierarchy.
−
−### Cylinder finish shall match the hardware set finish.
−
−### Entrance Door Locking Hardware {toc}
−
−```datasheet
−label: Entrance Door Locking Hardware
−type: select
−drawing_ref: true
−options:
− - "Mortise hookbolt deadlock (standard for narrow and medium stile)"
− - "Mortise deadlock (no hookbolt, standard for wide stile)"
− - "Electromagnetic lock (mag-lock) at door head (access controlled)"
− - "Electric strike with mortise latch (access controlled with mechanical egress)"
− - "Exit device with key cylinder (panic-rated egress, controlled entry)"
−default: "Exit device with key cylinder (panic-rated egress, controlled entry)"
−```
−
−## Push/Pull and Offset Pull Hardware {toc}
−
−### Where the entrance door does not have a lever-handle lock or panic device crossbar on the exterior, an offset pull (vertical pull handle) shall be provided on the exterior face for occupant operation.
−
−### The pull shall be mounted at a height compliant with ICC A117.1 (between 34 in. and 48 in. above the finished floor) and shall be securely fastened with through-bolts to a backing plate inside the door stile to resist long-term loosening from cyclical use.
−
−### Exterior Door Pull Type {toc}
−
−```datasheet
−label: Exterior Door Pull Type
−type: select
−drawing_ref: true
−options:
− - "Offset pull handle, vertical mount (standard pull hardware)"
− - "Crossbar (panic device crossbar provides exterior pull)"
− - "Lever handle (where mortise lock with lever is specified)"
− - "Flush pull (recessed pull, automatic operator-equipped doors)"
−default: "Offset pull handle, vertical mount (standard pull hardware)"
−```
−
−## Thresholds and Weatherstripping {toc}
−
−### Thresholds shall be extruded aluminum, mill or anodized finish, with a sloped or beveled profile compliant with ICC A117.1 maximum threshold height and bevel slope.
−
−### The threshold shall include a continuous integral weatherseal or shall be coordinated with the door bottom sweep so that the closed door provides a continuous perimeter seal against air and water infiltration.
−
−### Threshold Type {toc}
−
−```datasheet
−label: Threshold Type
−type: select
−drawing_ref: true
−options:
− - "Saddle threshold, flat with bevel both sides (interior or sheltered exterior)"
− - "Offset threshold with sealing strip (standard exterior, single door)"
− - "Half-saddle threshold with pile or fin seal (vestibule conditions)"
− - "Recessed threshold (floor-recessed, flush walking surface)"
−default: "Offset threshold with sealing strip (standard exterior, single door)"
−```
−
−```datasheet
−label: Door Bottom Sweep
−type: select
−options:
− - "Surface-mounted brush or fin sweep (standard, lowest cost)"
− - "Automatic door bottom (cam-action drop seal, drops when door closes)"
− - "Concealed automatic door bottom (mortised into bottom rail)"
−default: "Surface-mounted brush or fin sweep (standard, lowest cost)"
−```
−
−### Automatic door bottoms (cam-actuated drop seals that lower when the door closes) are preferred over surface-mounted brush sweeps for exterior doors because the drop seal achieves a tight closure against the threshold when the door is closed and lifts clear of interior flooring when the door is open. {note}
−
−### Concealed automatic door bottoms (mortised into the bottom rail of the door) provide the cleanest appearance and the best seal performance and are the appropriate default for AW-class entrances and for any door where measured air infiltration must be minimized. {note}
−
−### Perimeter weatherstripping at the head, jamb, and meeting stile (at door pairs) shall be continuous compression-pile or fin-seal weatherstripping installed in a kerf in the door framing or as a manufacturer-specified clip-on bulb seal.
−
−### Weatherstripping shall be replaceable in the field without removing the door or the framing.
−
−# Glazing {toc}
−
−## Glazing Method {toc}
−
−```datasheet
−label: Glazing Method
−type: select
−drawing_ref: true
−options:
− - "Dry glazed with EPDM gaskets (typical, factory-fabricated glazing pockets)"
− - "Wet glazed with structural silicone at exterior (high-performance, captured interior, sealed exterior)"
− - "Wet glazed at exterior and interior (full wet glazing, AW-class, custom systems)"
− - "Structural silicone glazing — four-sided (curtain-wall-style, NOT typical for storefront)"
−default: "Dry glazed with EPDM gaskets (typical, factory-fabricated glazing pockets)"
−```
−
−### Dry glazing with extruded EPDM or silicone gaskets is the standard and appropriate default for storefront systems; the IGU is set into the framing pocket against a continuous interior gasket and held by a snap-in exterior glass stop with a matching gasket. {note}
−
−### Wet glazing (with structural silicone at the exterior face) is used in higher-performance applications where the captured-glazing approach is supplemented or replaced by a silicone seal between the IGU and the framing; wet glazing systems require strict quality control during silicone application and are not the appropriate default for standard storefronts. {note}
−
−### Four-sided structural silicone glazing is a curtain-wall construction method and is generally not used in storefront systems; if specified, the system shall be re-evaluated against curtain wall requirements rather than storefront requirements.
−
−## Setting Blocks and Edge Clearances {toc}
−
−### Setting blocks shall be EPDM or silicone, 85 to 90 Shore A durometer, sized to support the full width of the IGU edge.
−
−### Setting blocks shall be located at the quarter-points of the bottom lite edge unless the IGU is large or has unusual aspect ratio, in which case the framing manufacturer's setting block locations shall govern.
−
−### Edge clearance, face clearance, and bite (the depth of glass engagement into the framing pocket) shall comply with the GANA Glazing Manual and the framing manufacturer's published glazing instructions.
−
−### Setting Block Material and Durometer {toc}
−
−```datasheet
−label: Setting Block Material and Durometer
−type: radio
−options:
− - "EPDM, 85 ± 5 Shore A (standard)"
− - "Silicone, 85 ± 5 Shore A (where EPDM compatibility is a concern)"
−default: "EPDM, 85 ± 5 Shore A (standard)"
−```
−
−## Glazing Pocket Drainage {toc}
−
−### The exterior glazing pocket shall be drained to the exterior by weep slots cut in the exterior glass stop or sill member.
−
−### Weep slot location and spacing shall be per the framing manufacturer's published details, and weep slots shall be located in the exterior face of the framing so that water exiting the slot is shed clear of the wall below, not trapped in the sealant joint between the storefront and the adjacent wall.
−
−### Internal framing drainage cavities shall be open to weep slots at every horizontal member.
−
−### Clogged weep slots are the most common cause of water leakage through storefront systems in service. {note}
−
−# Anchorage {toc}
−
−## Anchor Types {toc}
−
−### Storefront framing shall be anchored to the surrounding structure at the head, sill, and jambs by anchors of the type specified by the framing manufacturer and confirmed by the project structural calculations; anchor types include welded steel angles, expansion or screw anchors to concrete and masonry, and through-bolts to structural steel.
−
−```datasheet
−label: Head Anchor Type
−type: select
−drawing_ref: true
−options:
− - "Steel angle welded to embedded plate in concrete slab"
− - "Mechanical expansion anchor or screw anchor into concrete slab"
− - "Through-bolt to steel beam or steel angle"
− - "Through-bolt to wood blocking (wood-frame structures only)"
−default: "Mechanical expansion anchor or screw anchor into concrete slab"
−```
−
−```datasheet
−label: Sill Anchor Type
−type: select
−drawing_ref: true
−options:
− - "Embedded anchor bolt set in concrete slab during pour"
− - "Mechanical anchor into cured concrete slab"
− - "Subsill receptor with thru-anchor to slab"
−default: "Mechanical anchor into cured concrete slab"
−```
−
−```datasheet
−label: Jamb Anchor Type
−type: select
−drawing_ref: true
−options:
− - "Steel clip welded to embedded plate"
− - "Mechanical anchor into adjacent masonry or concrete jamb"
− - "Through-bolt to steel jamb or steel framing"
−default: "Mechanical anchor into adjacent masonry or concrete jamb"
−```
−
−### Anchor spacing shall be per the structural calculations and shall not exceed the framing manufacturer's published maximum spacing for the design pressure.
−
−### Where the surrounding structure cannot directly receive anchors (for example, a thin metal stud wall jamb adjacent to the storefront opening), the structural engineer shall provide a steel reinforcement plate, a continuous backing angle, or a thickened jamb stud to receive the anchor loads.
−
−### Storefront anchors shall not be installed in light-gauge metal stud framing that has not been engineered to receive them.
−
−## Subsill Receptor and Sill Pan Flashing {toc}
−
−### A subsill receptor (a continuous extruded aluminum channel set into the sill condition and sealed to the underlying construction) shall be provided at every storefront sill condition.
−
−### The subsill receptor captures any water that enters the framing system and drains it to the exterior through weep slots in the subsill, isolating the interior side of the framing from any incidental water in the assembly. {note}
−
−### A subsill receptor is critical to the water-tightness of the storefront and shall not be omitted as a cost-saving measure.
−
−### Subsill Receptor Required {toc}
−
−```datasheet
−label: Subsill Receptor Required
−type: radio
−options:
− - "Yes — continuous extruded aluminum subsill receptor at all sills (standard)"
− - "No — direct anchorage to slab with flashing (acceptable only for sheltered, interior sills)"
−default: "Yes — continuous extruded aluminum subsill receptor at all sills (standard)"
−```
−
−### End dams shall be formed at every termination of the subsill (at the jamb and at intermediate breaks in the run) by mechanically forming the subsill or by installing a separate end dam piece sealed to the subsill.
−
−### End dams prevent water that has been collected by the subsill from running out the open end of the subsill and into the wall cavity, and improperly formed or omitted end dams are one of the most frequent causes of moisture damage to the wall construction below the storefront sill. {note}
−
−### Subsill End Dams {toc}
−
−```datasheet
−label: Subsill End Dams
−type: radio
−options:
− - "Formed integral with subsill (mechanically formed end up)"
− - "Separate end dam piece sealed to subsill (factory-fabricated or field-fabricated)"
− - "End dams are not required (NOT acceptable for exterior storefronts)"
−default: "Formed integral with subsill (mechanically formed end up)"
−```
−
−### Sheet metal sill pan flashing, end dams, head flashing, and any counterflashing required to transition the storefront perimeter to adjacent envelope assemblies shall be coordinated with [[sync/sheet-metal-flashing-and-trim]] and shall be installed and sealed before the storefront framing is set into the rough opening.
−
−## Air and Water Control Layer Continuity {toc}
−
−### The air barrier and water resistive barrier of the adjacent wall construction shall be lapped or sealed to the perimeter of the storefront framing so that there is no break in either control layer across the storefront opening.
−
−### Flexible flashing tape, fluid-applied flashing membrane, or a transition membrane compatible with both the adjacent air/water barrier and the storefront frame material shall be installed in a shingled pattern from the bottom up so that any water that breaches the cladding above is directed onto the storefront's exterior face or into the subsill receptor, not behind the air/water barrier.
−
−### Perimeter Air and Water Control Transition {toc}
−
−```datasheet
−label: Perimeter Air and Water Control Transition
−type: select
−drawing_ref: "perimeter air/water transition detail"
−options:
− - "Flexible flashing tape lapped over building wrap to frame face"
− - "Fluid-applied flashing membrane painted over building wrap and onto frame perimeter"
− - "Transition membrane (manufacturer-specific) sealed to both air barrier and frame"
−default: "Fluid-applied flashing membrane painted over building wrap and onto frame perimeter"
−```
−
−# Aluminum Finish {toc}
−
−## Anodized Finish {toc}
−
−```datasheet
−label: Anodized Finish Class
−type: radio
−drawing_ref: true
−options:
− - "AA-M12C22A41 — Architectural Class I clear anodized (0.7 mil minimum, AAMA 611)"
− - "AA-M12C22A44 — Architectural Class I integral color anodized (0.7 mil minimum, AAMA 611)"
− - "Architectural Class II anodized (0.4 mil minimum, AAMA 611) — interior only"
−default: "AA-M12C22A41 — Architectural Class I clear anodized (0.7 mil minimum, AAMA 611)"
−```
−
−### Class I anodized finishes (0.7 mil minimum coating thickness) shall be used for all exterior applications and for all applications where extended service life and consistent finish appearance are required.
−
−### Class II anodized finishes are acceptable only for interior, non-exposed applications and shall not be specified for any storefront or entrance application where the finish is visible from the exterior or from an occupied public space.
−
−### Anodized finishes are subject to color variation between production lots, and mixing extrusions from independent anodizing runs without color verification produces visible color variation in the installed elevation. {note}
−
−### The Architect shall require that all extrusions for a single project be anodized in a coordinated run or in a controlled sequence of runs with documented color matching between runs.
−
−## Organic Coating (Painted Finish) {toc}
−
−```datasheet
−label: Organic Coating Specification
−type: select
−drawing_ref: true
−options:
− - "AAMA 2603 — pigmented organic coating (commercial-grade, interior and sheltered exterior)"
− - "AAMA 2604 — high-performance organic coating (typical exterior commercial)"
− - "AAMA 2605 — superior performing organic coating (premium exterior, PVDF/fluoropolymer)"
−default: "AAMA 2604 — high-performance organic coating (typical exterior commercial)"
−```
−
−### AAMA 2605 (typically a polyvinylidene fluoride or PVDF-based fluoropolymer coating) is the highest-performing organic finish and provides the longest service life with the least color fade; it is the appropriate specification for premium commercial exterior applications, monumental buildings, and any project where finish longevity is a primary criterion. {note}
−
−### AAMA 2604 is the typical default for standard commercial exterior storefronts; it provides good service life and color retention at a lower cost than AAMA 2605. {note}
−
−### AAMA 2603 is appropriate for interior or sheltered exterior applications where weather exposure is limited. {note}
−
−### Finish Color {toc}
−
−```datasheet
−label: Finish Color
−type: text
−drawing_ref: "finish schedule"
−default: deferred
−```
−
−### Custom colors and metallic finishes shall be confirmed against the coating manufacturer's available palette and against the framing manufacturer's coating supplier capabilities.
−
−### Some metallic and high-gradient color finishes are not available in AAMA 2605 from all suppliers, and the Architect shall confirm color availability before the finish is specified.
−
−# Installation {toc}
−
−## Pre-Installation Coordination {toc}
−
−### Before any storefront framing is delivered to the site, the Contractor shall conduct a pre-installation meeting with the framing installer, the glazing trade, the adjacent envelope trades (air barrier, flashing, cladding), and the structural engineer's representative if applicable.
−
−### Pre-installation meeting topics shall include confirmation of rough opening dimensions and tolerances, sequence of perimeter air and water barrier installation relative to storefront installation, anchor type and embedment confirmation, glazing schedule and IGU delivery timing, and field testing schedule.
−
−### Deficiencies in adjacent construction (rough opening out of square, anchor preparation missing, air barrier discontinuity) shall be resolved before storefront framing is installed.
−
−### Pre-Installation Meeting Held {toc}
−
−```datasheet
−label: Pre-Installation Meeting Held
−type: radio
−options:
− - "Required — meeting held with all coordinated trades before delivery"
− - "Not required (small project or single-trade installation)"
−default: "Required — meeting held with all coordinated trades before delivery"
−```
−
−## Rough Opening Tolerances {toc}
−
−### Rough openings shall be plumb, level, and square within the framing manufacturer's published tolerances and within the maximum tolerance of 1/4 in. in any 12 ft dimension, whichever is more stringent.
−
−### Out-of-tolerance rough openings shall be corrected before framing installation; shimming or stretching the framing to fit an out-of-square opening introduces locked-in stresses that distort gaskets, compromise water-tightness, and accelerate sealant joint failure.
−
−### Rough Opening Tolerance {toc}
−
−```datasheet
−label: Rough Opening Tolerance
−type: radio
−options:
− - "1/4 in. in any 12 ft dimension (standard tolerance)"
− - "1/8 in. in any 12 ft dimension (tighter, high-performance applications)"
− - "Per framing manufacturer's published requirements"
−default: "1/4 in. in any 12 ft dimension (standard tolerance)"
−```
−
−## Framing Installation Sequence {toc}
−
−### The framing shall be installed in the following general sequence, adjusted as needed for project-specific conditions: install subsill receptor and seal to substrate; install jamb framing members anchored to substrate; install head framing member and verify level; install intermediate horizontals and vertical mullions; install perimeter sealant and backer rod at all transitions to adjacent construction; install glazing; install doors and hardware; install door perimeter weatherstripping and threshold seals; field-test as required; clean and protect.
−
−### Framing members shall be installed plumb, level, and square.
−
−### Mullions shall be aligned to within 1/16 in. of plumb over the full mullion height.
−
−### Horizontals shall be aligned to within 1/16 in. of level over the full horizontal length.
−
−### Misalignment shall be corrected by adjusting the anchor locations or by re-cutting the framing; shimming alone shall not be used to correct out-of-plumb or out-of-level framing.
−
−## Glazing Installation {toc}
−
−### Glazing shall be installed after the framing is complete, square, and weather-protected.
−
−### IGUs shall be set on setting blocks at the quarter-points, with the interior gasket continuous around the perimeter and the exterior glass stop snapped in with continuous exterior gasket.
−
−### Gaskets shall be installed without splices wherever possible; where a splice is unavoidable, the splice shall be located at a corner or at a designated splice location in the framing manufacturer's published instructions and the splice shall be sealed.
−
−### Field cutting of IGUs is prohibited.
−
−### Damaged or undersized IGUs shall be replaced from the IGU manufacturer; on-site modification of IGU dimensions voids the IGU warranty and compromises the edge seal.
−
−## Door and Hardware Installation {toc}
−
−### Doors shall be installed last in the framing sequence so that the doors are not damaged during the framing and glazing operations.
−
−### Hardware shall be installed and adjusted per the hardware manufacturer's instructions.
−
−### Door closers shall be adjusted at substantial completion so that opening force, closing speed, latch speed, and back-check all comply with the project requirements.
−
−### Door closer adjustment shall be documented in the closeout submittals.
−
−### Hardware Adjustment Verification at Substantial Completion {toc}
−
−```datasheet
−label: Hardware Adjustment Verification at Substantial Completion
−type: radio
−options:
− - "Required — third-party or AHC adjusts and documents each closer"
− - "Required — installer adjusts and documents each closer"
− - "Not required (small project, single door)"
−default: "Required — installer adjusts and documents each closer"
−```
−
−# Field Testing {toc}
−
−## Quality-Assurance Diagnostic Water Test (AAMA 501.2) {toc}
−
−### A diagnostic water spray check per AAMA 501.2 shall be performed on installed storefront sections during construction at the frequency [[drawing: as indicated on the contract documents]], typically at least once for each separate storefront elevation or area.
−
−### The AAMA 501.2 check uses a calibrated nozzle spraying water at the framing under no static pressure differential, and is used to identify localized leakage at gaskets, sealant joints, and transitions during construction so that corrections can be made before the system is enclosed by adjacent construction. {note}
−
−### AAMA 501.2 is not a substitute for AAMA 503 chamber testing where the contract documents require certified field testing.
−
−### AAMA 501.2 Diagnostic Water Check {toc}
−
−```datasheet
−label: AAMA 501.2 Diagnostic Water Check
−type: select
−options:
− - "Not required"
− - "Required — one location per elevation"
− - "Required — multiple locations per elevation"
− - "Required — every storefront door perimeter"
−default: "Required — one location per elevation"
−```
−
−## Field Performance Test — AAMA 502 (Single Unit) {toc}
−
−### For window-class units installed within the storefront (operable windows, transom vents, single door units), field testing per AAMA 502 shall be performed at the frequency [[drawing: as indicated on the contract documents]].
−
−### AAMA 502 testing consists of air infiltration testing per ASTM E783 (the field counterpart of ASTM E283) and water penetration testing per ASTM E1105 at two-thirds of the laboratory water test pressure. {note}
−
−### AAMA 502 Field Test Required {toc}
−
−```datasheet
−label: AAMA 502 Field Test Required
−type: select
−options:
− - "Not required (no operable units)"
− - "Required — first unit installed and one unit per 100 thereafter"
− - "Required — one unit per opening type"
− - "Required — every installed unit"
−default: "Not required (no operable units)"
−```
−
−## Field Performance Test — AAMA 503 (Storefront System) {toc}
−
−### For the storefront system as a whole (the framing, glazing, and transitions, not individual operable units), field testing per AAMA 503 shall be performed at the frequency [[drawing: as indicated on the contract documents]].
−
−### AAMA 503 testing uses a sealed chamber attached to a typical bay of the installed system and applies static pressure differential while measuring air infiltration per ASTM E783 and water penetration per ASTM E1105.
−
−### AAMA 503 test pressures shall be two-thirds of the laboratory test pressure for the corresponding tests.
−
−### The Contractor shall coordinate the AAMA 503 test schedule with the construction schedule so that the test is performed after the storefront and adjacent envelope construction are complete but before interior finishes are installed on the interior face.
−
−### Test locations shall be selected by the Architect or the Engineer of Record to represent typical construction conditions and shall include at least one location at a door perimeter and at least one location at a typical mid-elevation bay.
−
−### Test deficiencies shall be repaired, and the test shall be repeated at the deficient location until the test is passed.
−
−### Repairs that require disassembly of the framing shall be documented in writing and shall not invalidate the warranty of unrelated framing sections.
−
−### AAMA 503 Field Test Required {toc}
−
−```datasheet
−label: AAMA 503 Field Test Required
−type: select
−drawing_ref: "field test plan"
−options:
− - "Not required"
− - "Required — one test location per storefront elevation"
− - "Required — three test locations per project"
−default: "Required — one test location per storefront elevation"
−```
−
−# Cleaning and Protection {toc}
−
−## Construction Protection {toc}
−
−### Storefront framing and glass shall be protected from damage by adjacent construction operations from the time of installation through substantial completion.
−
−### Protection shall include corner guards on door stiles and exposed mullions at floor level where carts, ladders, or trades work in close proximity; temporary plywood or plastic film on glass at door openings where pedestrian traffic passes; and removal of construction debris that could scratch the framing finish during cleaning.
−
−### Welding, cutting, and grinding operations shall not be performed within 25 feet of installed storefront glass without sacrificial blankets or shields protecting the glass from weld spatter, grinding sparks, or debris.
−
−### Weld spatter on glass creates inclusions that cannot be removed without replacing the glass; this is a common and avoidable cause of late-project glass replacement claims. {note}
−
−## Final Cleaning {toc}
−
−### At substantial completion, the framing finish, glass, and gaskets shall be cleaned to the framing manufacturer's published procedures and to the finish manufacturer's product-specific recommendations.
−
−### Acidic cleaners (including masonry cleaners and concrete-residue removers), abrasive cleaners, and solvent cleaners not approved by the framing manufacturer shall not be used.
−
−### Improper cleaners damage anodized and organic-coated finishes and may cause permanent staining or coating breakdown. {note}
−
−### Cleaning Products — Restrictions {toc}
−
−```datasheet
−label: Cleaning Products — Restrictions
−type: select
−drawing_ref: "cleaning specifications"
−options:
− - "Mild detergent and water only — no solvents, no acids, no abrasives"
− - "Manufacturer-approved cleaner per finish product data sheet"
−default: "Manufacturer-approved cleaner per finish product data sheet"
−```
−
−### Glass shall be cleaned with a non-abrasive glass cleaner approved by the IGU manufacturer.
−
−### Razor scraping of construction debris from glass shall not be performed on coated glass surfaces because the coating may extend to the visible face of the lite in some configurations and razor scraping damages the coating.
−
−# Warranty {toc}
−
−## Warranty Terms {toc}
−
−### The framing manufacturer shall provide a written warranty against defects in materials and workmanship for a minimum of two years from substantial completion, covering replacement of defective components and incidental labor required for replacement.
−
−### The IGU manufacturer shall provide a written warranty against insulating glass unit seal failure (visible obstruction, fogging, or moisture between the lites) for a minimum of ten years from substantial completion.
−
−### The finish manufacturer shall provide a written warranty against finish failure (color fade beyond AAMA-published limits, coating delamination, chalking) for a minimum of ten years for AAMA 2604 finishes and twenty years for AAMA 2605 finishes, from the date of finish application.
−
−### The sealant manufacturer shall provide a written warranty against sealant failure (adhesive failure to the framing or adjacent substrate, cohesive failure of the sealant, or loss of seal integrity) for a minimum of ten years for ASTM C920 Class 50 or 100 silicone sealants.
−
−### Warranty Term — Framing Manufacturer {toc}
−
−```datasheet
−label: Warranty Term — Framing Manufacturer
−type: range
−unit: years
−options:
− min: 1
− max: 10
− setpoints: [1, 2, 5, 10]
−default: 2
−```
−
−```datasheet
−label: Warranty Term — IGU Seal
−type: range
−unit: years
−options:
− min: 5
− max: 15
− setpoints: [5, 10, 15]
−default: 10
−```
−
−```datasheet
−label: Warranty Term — Finish (AAMA 2604 or 2605)
−type: range
−unit: years
−options:
− min: 5
− max: 20
− setpoints: [5, 10, 15, 20]
−default: 10
−```
−
−```datasheet
−label: Warranty Term — Sealant
−type: range
−unit: years
−options:
− min: 5
− max: 20
− setpoints: [5, 10, 20]
−default: 10
−```
−
−### Warranties shall be written in the name of the Owner, shall be transferable for the warranty term, and shall not exclude routine field-test repairs performed under AAMA 502 or AAMA 503 protocols.
−
−### Warranty exclusions for damage caused by improper cleaning, building movement beyond the system's tested capacity, or modifications by other trades shall be specifically identified in the warranty document; blanket exclusions shall not be accepted.
+---
+title: Aluminum Entrances and Storefronts
+category: Architectural / Openings
+description: >
+ When to use: Non-load-bearing extruded aluminum framing systems glazed with monolithic or insulating glass, and the aluminum stile-and-rail swing entrance doors integrated with them, at building perimeters and interior partitions. Covers framing depth, sightline, joinery, glazing pocket position, and thermal barrier construction; glass lite construction, insulating glass unit make-up, edge seal, and low-emissivity coatings; dry, wet, and structural silicone glazing methods; air infiltration, water penetration, structural wind load, thermal transmittance, solar heat gain, condensation, acoustic, windborne debris, and inter-story drift performance; entrance door leaf proportions, construction, hardware, thresholds, and weatherseals; anodic and organic finishes; perimeter anchorage, sill water management, and air and water control layer continuity; laboratory and field testing; installation, cleaning, protection, and warranty.
+ Not intended for: Curtain wall spanning multiple stories or carrying floor-edge load; window wall spanning slab to slab as the primary exterior wall assembly; point-supported structural glass walls and all-glass assemblies without aluminum framing; sloped and overhead glazing; operable aluminum windows in punched openings; automatic swinging, sliding, or folding entrance operators and revolving doors; overhead coiling grilles and service doors; hollow metal and wood doors and frames (see [[sync/doors-frames-and-hardware]]); blast-resistant, ballistic-resistant, and forced-entry-rated assemblies requiring project-specific engineered design.
+---
+
+# Scope {toc}
+
+## This standard governs the design, fabrication, finishing, and installation of extruded aluminum entrance and storefront systems, the glass and insulating glass units glazed into them, the swing entrance doors integrated with them, and their perimeter anchorage and seals. {note}
+
+## The furnished work shall comprise the framing assembly, the glazing infill, the entrance door leaves and their hardware, the thermal barrier construction, the perimeter anchorage, and the sealed interfaces between the storefront perimeter and the adjoining construction.
+
+## Storefront elevations, mullion and door locations, transom and sidelight arrangement, glass type designations by lite, and hardware set assignments are established by the contract drawings and are not fixed by this standard. {note}
+
+## Storefront and entrance layout shall be [[drawing: as indicated on the contract documents]].
+
+## The Contractor shall treat the storefront, its glazing, its doors, and its perimeter seals as one coordinated assembly and shall reconcile every performance criterion across those parts before fabrication is released.
+
+## Structural, thermal, water control, air control, egress, accessibility, and durability requirements are cross-coupled in a glazed aluminum assembly, so a change made to satisfy one of them routinely disturbs another. {note}
+
+## A deeper thermal barrier lowers the assembly U-factor and also changes the profile depth, which changes the anchor preparation and the door pocket dimension; a higher design pressure drives thicker glass, which raises unit weight and changes the closer size and hinge selection; a laminated inboard lite adds weight and thickness to every unit it appears in. {note}
+
+## Coordination with Adjacent Work {toc}
+
+### The Contractor shall coordinate hardware finish, keying, and access control preparation across entrance, storefront, and interior openings with [[sync/doors-frames-and-hardware]].
+
+### The Contractor shall coordinate continuity of the building thermal envelope at the storefront head, jambs, and sill with [[sync/building-thermal-insulation]].
+
+### The Contractor shall coordinate head flashing, sill pan flashing, end dams, and perimeter closures and counterflashing with [[sync/sheet-metal-flashing-and-trim]].
+
+### The Contractor shall coordinate continuity of the air control layer and the water resistive barrier across the storefront rough opening with the trades installing those layers in the adjoining wall.
+
+# Referenced Standards {toc}
+
+## Materials, fabrication, testing, and installation shall comply with the latest adopted edition of each of the following unless a specific edition is cited in the Contract Documents.
+
+## Where referenced standards conflict, the more stringent requirement shall govern unless the Engineer of Record directs otherwise in writing.
+
+## The Contractor shall submit a written request for interpretation to the Engineer of Record before proceeding with work governed by a conflict identified during submittal preparation.
+
+| Standard | Title |
+|----------|-------|
+| AAMA/WDMA/CSA 101/I.S.2/A440 | North American Fenestration Standard/Specification for Windows, Doors, and Skylights |
+| AAMA 501 | Methods of Test for Exterior Walls |
+| AAMA 501.2 | Quality Assurance and Diagnostic Water Leakage Field Check of Installed Storefronts, Curtain Walls, and Sloped Glazing Systems |
+| AAMA 501.4 | Recommended Static Test Method for Evaluating Curtain Wall and Storefront Systems Subjected to Seismic and Wind Induced Inter-Story Drift |
+| AAMA 502 | Voluntary Specification for Field Testing of Newly Installed Fenestration Products |
+| AAMA 503 | Voluntary Specification for Field Testing of Newly Installed Storefronts, Curtain Walls, and Sloped Glazing Systems |
+| AAMA 611 | Voluntary Specification for Anodized Architectural Aluminum |
+| AAMA 612 | Combined Coatings of Anodic Oxide and Transparent Organic Coatings on Architectural Aluminum |
+| AAMA 800 | Voluntary Specifications and Test Methods for Sealants |
+| AAMA 1503 | Voluntary Test Method for Thermal Transmittance and Condensation Resistance of Windows, Doors, and Glazed Wall Sections |
+| AAMA 2603 | Pigmented Organic Coatings on Aluminum Extrusions and Panels |
+| AAMA 2604 | High Performance Organic Coatings on Aluminum Extrusions and Panels |
+| AAMA 2605 | Superior Performing Organic Coatings on Aluminum Extrusions and Panels |
+| AAMA CW-13 | Structural Sealant Glazing Systems |
+| AAMA SSGDG-1 | Structural Silicone Glazing Design Guidelines |
+| AAMA TIR-A8 | Structural Performance of Composite Thermal Barrier Framing Systems |
+| ASTM B209 | Aluminum and Aluminum-Alloy Sheet and Plate |
+| ASTM B221 | Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes |
+| ASTM C509 | Elastomeric Cellular Preformed Gasket and Sealing Material |
+| ASTM C864 | Dense Elastomeric Compression Seal Gaskets, Setting Blocks, and Spacers |
+| ASTM C920 | Elastomeric Joint Sealants |
+| ASTM C1036 | Flat Glass |
+| ASTM C1048 | Heat-Strengthened and Fully Tempered Flat Glass |
+| ASTM C1172 | Laminated Architectural Flat Glass |
+| ASTM C1376 | Pyrolytic and Vacuum Deposition Coatings on Flat Glass |
+| ASTM E90 | Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements |
+| ASTM E283 | Determining Rate of Air Leakage Through Exterior Windows, Skylights, Curtain Walls, and Doors Under Specified Pressure Differences Across the Specimen |
+| ASTM E330 | Structural Performance of Exterior Windows, Doors, Skylights, and Curtain Walls by Uniform Static Air Pressure Difference |
+| ASTM E331 | Water Penetration of Exterior Windows, Skylights, Doors, and Curtain Walls by Uniform Static Air Pressure Difference |
+| ASTM E413 | Classification for Rating Sound Insulation |
+| ASTM E547 | Water Penetration of Exterior Windows, Skylights, Doors, and Curtain Walls by Cyclic Static Air Pressure Difference |
+| ASTM E783 | Field Measurement of Air Leakage Through Installed Exterior Windows and Doors |
+| ASTM E1105 | Field Determination of Water Penetration of Installed Exterior Windows, Skylights, Doors, and Curtain Walls, by Uniform or Cyclic Static Air Pressure Difference |
+| ASTM E1300 | Determining Load Resistance of Glass in Buildings |
+| ASTM E1332 | Classification for Rating Outdoor-Indoor Sound Attenuation |
+| ASTM E1886 | Performance of Exterior Windows, Curtain Walls, Doors, and Impact Protective Systems Impacted by Missile(s) and Exposed to Cyclic Pressure Differentials |
+| ASTM E1996 | Performance of Exterior Windows, Curtain Walls, Doors, and Impact Protective Systems Impacted by Windborne Debris in Hurricanes |
+| ASTM E2112 | Installation of Exterior Windows, Doors, and Skylights |
+| ASTM E2190 | Insulating Glass Unit Performance and Evaluation |
+| ANSI Z97.1 | Safety Glazing Materials Used in Buildings — Safety Performance Specifications and Methods of Test |
+| ANSI/BHMA A156.3 | Exit Devices |
+| ANSI/BHMA A156.4 | Door Controls — Closers |
+| ANSI/BHMA A156.5 | Cylinders and Input Devices for Locks |
+| ANSI/BHMA A156.16 | Auxiliary Hardware |
+| ANSI/BHMA A156.18 | Materials and Finishes |
+| ANSI/BHMA A156.26 | Continuous Hinges |
+| 16 CFR 1201 | Safety Standard for Architectural Glazing Materials |
+| GANA Glazing Manual | Glazing Manual |
+| ICC A117.1 | Accessible and Usable Buildings and Facilities |
+| IBC | International Building Code |
+| IECC | International Energy Conservation Code |
+| NFRC 100 | Procedure for Determining Fenestration Product U-factors |
+| NFRC 200 | Procedure for Determining Fenestration Product Solar Heat Gain Coefficient and Visible Transmittance at Normal Incidence |
+| NFRC 500 | Procedure for Determining Fenestration Product Condensation Resistance Values |
+
+# Submittals {toc}
+
+## Action Submittals {toc}
+
+### Action submittals shall be reviewed and returned before any framing, glass, door, or hardware item is released for fabrication or procurement.
+
+### Storefront, glazing, door, and hardware submittals shall be assembled into one coordinated review package so that framing depth, glazing pocket dimension, unit thickness, door leaf dimension, and hardware preparation are reconciled against one another in a single review.
+
+### The Contractor shall submit the following action submittals:
+- Storefront shop drawing elevations of every storefront condition, drawn to scale, keyed to the contract drawings, showing mullion and door locations, transom and rail lines, glass type designation per lite, and rough opening dimensions
+- Storefront shop drawing section details at head, jamb, sill, intermediate horizontal, intermediate vertical, door head, door jamb, and threshold, and at every transition to an adjoining assembly, showing thermal barrier, glazing pocket and gasket engagement, perimeter joint, anchor type and location, and air and water control layer continuity
+- Door elevations for each door type showing stile and rail dimensions, leaf size, hand, swing, glazing, and hardware preparation locations
+- Hardware schedule organized by hardware set, identifying each item by function, ANSI/BHMA designation, ANSI/BHMA A156.18 finish code, and applicable listing
+- Letter from the hardware supplier confirming that the scheduled hardware satisfies the accessibility, means of egress, and panic hardware requirements of the adopted code for each opening
+- Structural calculations for framing members and anchorage, signed and sealed by a professional engineer licensed in the project jurisdiction, addressing member spans, deflection, glass load resistance per ASTM E1300, anchor capacity at every anchor condition, and accommodation of building movement
+- Product data for framing, doors, thermal barrier material, gaskets, sealants, setting blocks, and finish, including the tested performance class and grade and the supporting laboratory test reports
+- Insulating glass unit make-up submittal for each glass type, stating each lite by thickness, heat treatment, lamination, and coating type and surface, and stating spacer, primary and secondary seal materials, and cavity fill
+- Thermal and optical performance reports stating U-factor per NFRC 100, solar heat gain coefficient and visible transmittance per NFRC 200, and the condensation rating on the basis indicated in the datasheet
+- Finish samples on the extrusion profile to be furnished, or on a profile of equivalent thickness and orientation, at least 12 in. by 12 in.
+- Sealant compatibility and adhesion test report from the sealant manufacturer covering the framing finish, the glass edge condition, and each adjoining substrate
+
+```datasheet
+label: Action Submittals Required
+type: checkbox
+options:
+ - "Storefront shop drawing elevations"
+ - "Storefront shop drawing section details"
+ - "Door elevations by type"
+ - "Hardware schedule by hardware set"
+ - "Hardware supplier code compliance letter"
+ - "Signed and sealed structural calculations"
+ - "Framing, door, gasket, and sealant product data"
+ - "Insulating glass unit make-up submittal"
+ - "NFRC thermal and optical performance reports"
+ - "Condensation rating report"
+ - "Finish samples on the furnished profile"
+ - "Sealant compatibility and adhesion test report"
+ - "Mock-up test report"
+default: ["Storefront shop drawing elevations", "Storefront shop drawing section details", "Door elevations by type", "Hardware schedule by hardware set", "Signed and sealed structural calculations", "Framing, door, gasket, and sealant product data", "Insulating glass unit make-up submittal", "NFRC thermal and optical performance reports", "Finish samples on the furnished profile"]
+```
+
+## Informational Submittals {toc}
+
+### The Contractor shall submit the following informational submittals before the corresponding work begins:
+- Manufacturer qualification statement with laboratory test reports for the specific framing system offered
+- Installer qualification statement listing comparable completed projects with contact references
+- Certification of the insulating glass unit fabricator under a program that verifies conformance to ASTM E2190
+- Glazier training or certification records for the glazing method used on the project
+- Field test agency qualifications and the proposed field test procedure and schedule
+- Manufacturer written instructions for glazing, anchorage, and hardware installation
+
+```datasheet
+label: Informational Submittals Required
+type: checkbox
+options:
+ - "Manufacturer qualification statement with test reports"
+ - "Installer qualification statement with references"
+ - "Insulating glass unit fabricator certification"
+ - "Glazier training or certification records"
+ - "Field test agency qualifications and procedure"
+ - "Manufacturer written installation instructions"
+default: ["Manufacturer qualification statement with test reports", "Installer qualification statement with references", "Insulating glass unit fabricator certification", "Manufacturer written installation instructions"]
+```
+
+## Closeout Submittals {toc}
+
+### The Contractor shall submit the following closeout submittals before final acceptance:
+- As-built storefront elevations and door and hardware schedules reflecting field changes
+- Field test reports for every field test performed, including retests after repair
+- Record of door closer adjustment at each opening, stating measured opening force
+- Cleaning and maintenance instructions for framing finish, glass, gaskets, sealants, and hardware, naming the products that are permitted and the products that are prohibited on each surface
+- Executed warranties from the framing manufacturer, the insulating glass unit fabricator, the finish applicator, the sealant manufacturer, and the hardware supplier
+- Transfer of spare parts and maintenance materials with a written inventory receipt
+
+```datasheet
+label: Closeout Submittals Required
+type: checkbox
+options:
+ - "As-built elevations and schedules"
+ - "Field test reports including retests"
+ - "Door closer adjustment record"
+ - "Cleaning and maintenance instructions"
+ - "Framing manufacturer warranty"
+ - "Insulating glass unit warranty"
+ - "Finish warranty"
+ - "Sealant warranty"
+ - "Hardware warranty"
+ - "Spare parts inventory receipt"
+default: ["As-built elevations and schedules", "Field test reports including retests", "Door closer adjustment record", "Cleaning and maintenance instructions", "Framing manufacturer warranty", "Insulating glass unit warranty", "Finish warranty", "Sealant warranty", "Hardware warranty", "Spare parts inventory receipt"]
+```
+
+# Quality Assurance {toc}
+
+## Manufacturer and Installer Qualifications {toc}
+
+### The framing manufacturer shall furnish independent laboratory test reports for the offered framing system covering air infiltration, water penetration, and structural performance at or above the criteria established in this standard.
+
+### The framing manufacturer shall furnish the published span and load tables used by the structural calculations, identifying the member, reinforcement condition, and design pressure to which each table applies.
+
+### The installer shall have installed thermally comparable aluminum entrance and storefront systems for at least the number of years indicated in the datasheet.
+
+```datasheet
+label: Installer Minimum Years of Experience with Comparable Systems
+type: range
+unit: years
+min: 0
+max: 10
+setpoints: [0, 2, 3, 5, 10]
+```
+
+### Where the project includes windborne debris impact-rated assemblies, the installer shall demonstrate prior completed work on impact-rated fenestration of equivalent missile level.
+
+### Glaziers shall be trained by the framing system manufacturer in the glazing pocket configuration, gasket type, and sealant application used on the project, and the Contractor shall maintain the training records on site.
+
+### Where the parties disagree whether an installer or glazier meets these qualifications, the Engineer of Record shall make the initial determination.
+
+## Mock-Up {toc}
+
+### A mock-up establishes the accepted standard of appearance and, where it is tested, the accepted standard of air and water performance for the production installation. {note}
+
+### The storefront mock-up requirement shall be as indicated in the datasheet.
+
+```datasheet
+label: Storefront Mock-Up Requirement
+type: select
+options:
+ - "Not required"
+ - "Visual mock-up of a typical bay"
+ - "Field mock-up of a typical bay installed in its permanent location"
+ - "Field mock-up of a typical bay installed in a temporary test location"
+ - "Laboratory test specimen of a typical bay"
+```
+
+### Where a mock-up is required, it shall include every component of a typical bay, including framing, glazing, door where a door occurs in the typical bay, perimeter sealant, anchorage, and the transition to the adjoining assembly, so that the air and water control layers can be evaluated as an assembled whole.
+
+### Where a mock-up is required, the Contractor shall obtain written acceptance of the mock-up from the Engineer of Record before releasing production fabrication.
+
+### Where a mock-up fails a required test, the Contractor shall correct the deficiency and repeat the failed test on the corrected mock-up at the Contractor's cost before production work proceeds.
+
+### An accepted mock-up may remain in the completed work where it is installed in its permanent location and complies with all requirements of the Contract Documents.
+
+# Performance Classification {toc}
+
+## Rated Performance Class and Grade {toc}
+
+### AAMA/WDMA/CSA 101/I.S.2/A440 classifies a fenestration product by a performance class letter paired with a performance grade number, written together as a class-grade designation. The class establishes the gateway test criteria the product must satisfy; the grade is the design pressure in psf at which the product was tested. {note}
+
+### The storefront and entrance system shall be tested, rated, and labeled in accordance with AAMA/WDMA/CSA 101/I.S.2/A440.
+
+### The rated performance class shall be as indicated in the datasheet.
+
+```datasheet
+label: Rated Performance Class
+type: select
+options:
+ - "R"
+ - "LC"
+ - "CW"
+ - "AW"
+```
+
+### The rated performance grade shall be not less than the design wind pressure established by the structural drawings for the storefront's exposure and elevation.
+
+## Design Wind Pressure {toc}
+
+### Design wind pressure is established by the building code wind load determination for the project location, building height, exposure category, and the storefront's position on the facade, and it differs between the inward-acting and outward-acting directions at the same location. {note}
+
+### The inward-acting design wind pressure shall be as indicated in the datasheet.
+
+```datasheet
+label: Inward-Acting Design Wind Pressure
+type: range
+unit: psf
+min: 10
+max: 200
+setpoints: [10, 15, 20, 25, 30, 40, 50, 60, 70, 80, 100, 120, 150, 200]
+drawing_ref: "structural drawings"
+default: deferred
+```
+
+### The outward-acting design wind pressure shall be as indicated in the datasheet.
+
+```datasheet
+label: Outward-Acting Design Wind Pressure
+type: range
+unit: psf
+min: 10
+max: 200
+setpoints: [10, 15, 20, 25, 30, 40, 50, 60, 70, 80, 100, 120, 150, 200]
+drawing_ref: "structural drawings"
+default: deferred
+```
+
+### Framing, glass, and anchorage shall be designed for the greater of the inward-acting and outward-acting design wind pressures at each location, applied in each direction independently.
+
+## Structural Load Resistance {toc}
+
+### The framing system shall withstand the design wind pressure in both directions without glass breakage, anchor failure, permanent deformation, or loss of the air or water seal.
+
+### Structural performance shall be verified by test in accordance with ASTM E330 at 1.5 times the design wind pressure applied for 10 seconds in each direction.
+
+### Permanent deformation of any framing member after the structural overload test shall not exceed 0.2 percent of the member span.
+
+### Glass thickness and heat treatment shall be selected in accordance with ASTM E1300 for the design wind pressure, lite dimensions, support condition, and unit make-up at each lite.
+
+## Framing Deflection Limits {toc}
+
+### Excessive framing deflection under wind load relieves gasket compression at the glazing pocket, opens the perimeter seal, and transfers load into the glass edge. Two bounds are customarily applied together because a span ratio alone permits large absolute movement on a long member. {note}
+
+### Framing member deflection normal to the plane of the wall under the design wind pressure shall not exceed the span ratio indicated in the datasheet.
+
+```datasheet
+label: Framing Deflection Limit — Span Ratio
+type: select
+options:
+ - "L/120"
+ - "L/175"
+ - "L/240"
+ - "L/360"
+default: "L/175"
+```
+
+### Framing member deflection normal to the plane of the wall under the design wind pressure shall not exceed the absolute limit indicated in the datasheet.
+
+```datasheet
+label: Framing Deflection Limit — Absolute
+type: range
+unit: in.
+min: 0.125
+max: 1.5
+setpoints: [0.125, 0.25, 0.375, 0.5, 0.75, 1, 1.5]
+default: 0.75
+```
+
+### Deflection of a framing member parallel to the plane of the glass under superimposed dead load shall not reduce the glass edge clearance below the value published by the framing manufacturer for the glazing pocket, and shall not exceed 1/8 in.
+
+# Air Infiltration {toc}
+
+## An air leakage limit is meaningless without the pressure differential at which it is measured. US energy codes rate storefront glazing and commercial glazed swinging entrance doors at 1.57 psf, while project specifications for commercial storefront commonly require the same rate to be demonstrated at 6.24 psf, which is the substantially more demanding of the two. {note}
+
+## Air infiltration shall be tested in accordance with ASTM E283 at the pressure differential indicated in the datasheet.
+
+```datasheet
+label: Air Infiltration Test Pressure Differential
+type: range
+unit: psf
+min: 1.57
+max: 6.24
+setpoints: [1.57, 2.86, 6.24]
+```
+
+## Air leakage through fixed framing and glazing, excluding the operating perimeter of any door or operable unit, shall not exceed the rate indicated in the datasheet.
+
+```datasheet
+label: Air Leakage Limit — Fixed Framing and Glazing
+type: range
+unit: cfm/ft²
+min: 0.01
+max: 0.3
+setpoints: [0.01, 0.03, 0.06, 0.1, 0.2, 0.3]
+default: 0.06
+```
+
+## Air leakage through a swing entrance door, measured over the door leaf area, shall not exceed the rate indicated in the datasheet.
+
+```datasheet
+label: Air Leakage Limit — Swing Entrance Door
+type: range
+unit: cfm/ft²
+min: 0.3
+max: 1.5
+setpoints: [0.3, 0.5, 0.75, 1, 1.5]
+default: 1
+```
+
+## A swing entrance door leaks more air than the fixed framing around it because the leaf needs operating clearance at every edge, and the seal at that clearance is a compressed or wiping contact rather than a captured gasket. Where the leakage rate must approach that of the fixed framing, full-perimeter compression weatherstripping and a drop seal at the sill are the mechanisms available, and a vestibule removes the exterior pressure differential from one leaf entirely. {note}
+
+# Water Penetration Resistance {toc}
+
+## Static water penetration resistance shall be tested in accordance with ASTM E331 at the test pressure indicated in the datasheet.
+
+```datasheet
+label: Water Penetration Resistance Test Pressure
+type: range
+unit: psf
+min: 2.86
+max: 20
+setpoints: [2.86, 5, 6.24, 8, 10, 12, 15, 20]
+```
+
+## AAMA/WDMA/CSA 101/I.S.2/A440 derives the water test pressure as a fraction of the design wind pressure subject to a floor and a ceiling, so on most projects the value in the datasheet follows from the design pressure rather than being chosen independently. {note}
+
+## Where cyclic water penetration testing is required by the datasheet, it shall be performed in accordance with ASTM E547 at the same test pressure.
+
+## No water shall pass beyond the innermost plane of the framing during the water penetration test period.
+
+## Water that enters the glazing pocket or an internal framing cavity shall be collected and drained to the exterior, and shall not reach the interior face of the framing.
+
+## Controlled leakage into a drained and weeped cavity is the design intent of a captured aluminum glazing system, so a test criterion written as no water entering the system at all would fail a correctly built assembly. The criterion is that no water passes the interior plane. {note}
+
+# Thermal and Solar Performance {toc}
+
+## Whole-product ratings and center-of-glass ratings are not interchangeable. A center-of-glass U-factor omits the frame and the glass edge, which are the least insulating parts of the assembly, so it always reads better than the assembly the project actually receives. {note}
+
+## Thermal transmittance, solar heat gain coefficient, and visible transmittance shall be established for the complete fenestration product, including framing, in accordance with NFRC 100 and NFRC 200.
+
+## Component-level or center-of-glass values shall not be substituted for whole-product ratings where the energy code compliance path requires certified whole-product ratings.
+
+## The maximum whole-product thermal transmittance shall be as indicated in the datasheet.
+
+```datasheet
+label: Maximum Whole-Product U-Factor
+type: range
+unit: Btu/h·ft²·°F
+min: 0.15
+max: 1.2
+setpoints: [0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.7, 0.8, 1, 1.2]
+drawing_ref: "energy compliance documentation"
+default: deferred
+```
+
+## The maximum whole-product solar heat gain coefficient shall be as indicated in the datasheet.
+
+```datasheet
+label: Maximum Whole-Product Solar Heat Gain Coefficient
+type: range
+unit: SHGC
+min: 0.1
+max: 0.8
+setpoints: [0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.6, 0.7, 0.8]
+drawing_ref: "energy compliance documentation"
+default: deferred
+```
+
+## The minimum whole-product visible transmittance shall be as indicated in the datasheet.
+
+```datasheet
+label: Minimum Whole-Product Visible Transmittance
+type: range
+unit: VT
+min: 0.1
+max: 0.8
+setpoints: [0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8]
+drawing_ref: "energy compliance documentation"
+default: deferred
+```
+
+## Solar heat gain coefficient and visible transmittance both fall as a coating is made more solar-selective, and the ratio between them is bounded by the coating chemistry available. A target pair that is unreachable by any coated unit forces a change to one of the two targets, so the pair is checked against candidate unit make-ups before the glass is released. {note}
+
+## The Contractor shall confirm through the insulating glass unit submittal that the U-factor, solar heat gain coefficient, and visible transmittance targets are met simultaneously by the proposed unit make-up, and shall report any target that cannot be met to the Engineer of Record before the glass is fabricated.
+
+# Condensation Resistance {toc}
+
+## Two US condensation metrics are in use and their values are not interchangeable. AAMA 1503 reports a condensation resistance factor from a guarded hot box test of the assembly; NFRC 500 reports a condensation resistance value on a 1 to 100 scale, determined chiefly by simulation at stated indoor humidity levels. A number quoted without its basis cannot be verified. {note}
+
+## The condensation rating basis shall be as indicated in the datasheet.
+
+```datasheet
+label: Condensation Rating Basis
+type: select
+options:
+ - "Condensation resistance factor per AAMA 1503"
+ - "Condensation resistance per NFRC 500"
+```
+
+## The minimum condensation rating on the indicated basis shall be as indicated in the datasheet.
+
+```datasheet
+label: Minimum Condensation Rating
+type: range
+unit: rating
+min: 20
+max: 100
+setpoints: [20, 30, 40, 45, 50, 55, 60, 65, 70, 75, 80, 90, 100]
+drawing_ref: "energy compliance documentation"
+default: deferred
+```
+
+## Interior surface condensation forms where the interior surface temperature of the frame or the glass edge falls below the interior dew point, so the rating required at a given location follows from the interior design humidity and the winter design temperature rather than from the product alone. Where interior humidity is elevated by process or occupancy, as in a natatorium, an ice rink, or a food processing area, the governing dew point is well above that of a conventionally conditioned space. {note}
+
+## The Contractor shall submit the framing manufacturer's written confirmation that the proposed assembly meets the indicated condensation rating at the project's interior design temperature and relative humidity.
+
+# Acoustic Performance {toc}
+
+## Sound transmission class and outdoor-indoor transmission class rate the same assembly against different spectra. Outdoor-indoor transmission class weights low-frequency content more heavily, so an assembly selected on sound transmission class alone can perform poorly against traffic, rail, and aircraft noise. {note}
+
+## Where an acoustic rating is required, laboratory sound transmission loss shall be measured in accordance with ASTM E90.
+
+## The minimum sound transmission class, rated in accordance with ASTM E413, shall be as indicated in the datasheet.
+
+```datasheet
+label: Minimum Sound Transmission Class
+type: range
+unit: STC
+min: 25
+max: 55
+setpoints: [25, 28, 30, 32, 34, 36, 38, 40, 42, 45, 50, 55]
+drawing_ref: "acoustic requirements on the contract documents"
+default: deferred
+```
+
+## The minimum outdoor-indoor transmission class, rated in accordance with ASTM E1332, shall be as indicated in the datasheet.
+
+```datasheet
+label: Minimum Outdoor-Indoor Transmission Class
+type: range
+unit: OITC
+min: 20
+max: 45
+setpoints: [20, 22, 25, 27, 30, 32, 35, 40, 45]
+drawing_ref: "acoustic requirements on the contract documents"
+default: deferred
+```
+
+## Where the Contract Documents establish no acoustic rating for a storefront area, no acoustic performance is required in that area.
+
+## Acoustic performance of a glazed aluminum assembly is governed chiefly by the glazing rather than the framing. Dissimilar lite thicknesses break the coincidence dip that matched lites share, a viscoelastic interlayer damps the panel, and a wider cavity lowers the mass-air-mass resonance. Ratings above the range that standard storefront framing accommodates generally require a cavity deeper than the framing pocket, which changes the framing depth selection. {note}
+
+# Windborne Debris Impact Resistance {toc}
+
+## Where the project is located in a windborne debris region, glazed openings are required by the building code either to resist missile impact and subsequent cyclic pressure loading or to be protected by an impact-resistant covering. {note}
+
+## Where impact resistance is required, the assembly shall be tested in accordance with ASTM E1886 and shall satisfy the criteria of ASTM E1996 for the missile level and wind zone indicated in the datasheet.
+
+## The required missile level shall be as indicated in the datasheet.
+
+```datasheet
+label: Windborne Debris Missile Level
+type: select
+drawing_ref: "structural drawings"
+options:
+ - "Not in a windborne debris region"
+ - "Small missile"
+ - "Large missile"
+default: deferred
+```
+
+## The ASTM E1996 wind zone shall be as indicated in the datasheet.
+
+```datasheet
+label: ASTM E1996 Wind Zone
+type: select
+drawing_ref: "structural drawings"
+options:
+ - "Not applicable"
+ - "Wind Zone 1"
+ - "Wind Zone 2"
+ - "Wind Zone 3"
+ - "Wind Zone 4"
+default: deferred
+```
+
+## An impact rating belongs to a tested assembly, not to a component. The glass make-up, interlayer, glazing method, framing profile, bite, and anchorage are all variables in the qualifying test, so a rating earned by one combination does not transfer to another. {note}
+
+## Impact-rated assemblies shall be furnished exactly as configured in the qualifying test report, including glass make-up, interlayer type and thickness, glazing method, glazing bite, framing profile, and anchor type and spacing.
+
+## The Contractor shall not substitute any component of an impact-rated assembly without a revised test report or a written engineering evaluation from the framing manufacturer accepted by the Engineer of Record.
+
+# Inter-Story Drift Accommodation {toc}
+
+## A storefront supported at two levels of a moving structure is displaced in its own plane when the structure racks. The framing accommodates that displacement through anchor slots, joint clearance, and glass edge clearance; when those are exhausted the load transfers into the glass edge and the perimeter seal. {note}
+
+## The framing and anchorage shall accommodate the design inter-story drift indicated in the datasheet, in either in-plane direction, without glass breakage, permanent framing deformation, or loss of the perimeter seal.
+
+```datasheet
+label: Design Inter-Story Drift Accommodation
+type: range
+unit: in.
+min: 0
+max: 3
+setpoints: [0, 0.25, 0.5, 0.75, 1, 1.5, 2, 3]
+drawing_ref: "structural drawings"
+default: deferred
+```
+
+## Where the datasheet requires drift testing, drift accommodation shall be verified in accordance with AAMA 501.4 on a specimen representing the project's framing, glazing, and anchorage.
+
+## The structural calculations shall state the anchor slot length, joint width, and glass edge clearance relied on to accommodate the design drift, and the shop drawings shall dimension each of them.
+
+# Aluminum Extrusions {toc}
+
+## Extruded aluminum for framing members, door stiles and rails, glass stops, pressure plates, and trim shall conform to ASTM B221.
+
+## Aluminum sheet and plate for closures, anchor plates, and formed flashings furnished under this standard shall conform to ASTM B209.
+
+## The alloy and temper of structural framing members, door stiles, and door rails shall be as indicated in the datasheet.
+
+```datasheet
+label: Structural Member Alloy and Temper
+type: select
+options:
+ - "6063-T5"
+ - "6063-T6"
+ - "6005A-T61"
+ - "6061-T6"
+default: "6063-T6"
+```
+
+## The alloy and temper of non-structural glass stops, pressure plates, and trim shall be as indicated in the datasheet.
+
+```datasheet
+label: Non-Structural Member Alloy and Temper
+type: select
+options:
+ - "6063-T5"
+ - "6063-T6"
+ - "6005A-T61"
+default: "6063-T5"
+```
+
+## Temper governs the strength available from a given profile, and the higher tempers are what allow a slender mullion to carry hardware reaction and wind load. The lower temper is more readily formed and is adequate where a member carries only its own weight and the gasket reaction. {note}
+
+## The minimum wall thickness of structural framing members and door stiles and rails shall be as indicated in the datasheet.
+
+```datasheet
+label: Minimum Wall Thickness — Structural Members
+type: range
+unit: in.
+min: 0.05
+max: 0.188
+setpoints: [0.05, 0.062, 0.07, 0.08, 0.093, 0.109, 0.125, 0.156, 0.188]
+default: 0.08
+```
+
+## The minimum wall thickness of non-structural glass stops, pressure plates, and trim shall be as indicated in the datasheet.
+
+```datasheet
+label: Minimum Wall Thickness — Non-Structural Members
+type: range
+unit: in.
+min: 0.04
+max: 0.125
+setpoints: [0.04, 0.05, 0.062, 0.07, 0.08, 0.093, 0.125]
+default: 0.062
+```
+
+## Steel reinforcement furnished inside an aluminum framing cavity shall be hot-dip galvanized, or shall be isolated from the aluminum by a non-conductive separator, so that the dissimilar metals are not in direct contact in the presence of moisture.
+
+# Thermal Barrier {toc}
+
+## A thermal barrier interrupts the continuous aluminum path between the exterior and interior faces of a framing member. The interruption is what allows the interior surface to stay near room temperature, and it also means the two aluminum halves are joined only through the barrier, so the barrier carries shear between them. {note}
+
+## The thermal barrier method shall be as indicated in the datasheet.
+
+```datasheet
+label: Thermal Barrier Method
+type: select
+options:
+ - "Not thermally broken"
+ - "Poured and debridged polyurethane"
+ - "Pultruded glass-reinforced polyamide strut, mechanically crimped"
+ - "Co-extruded thermoplastic composite"
+ - "Thermally improved with a non-structural insulating separator"
+```
+
+## Where a thermal barrier is indicated, its nominal width measured across the interruption shall be as indicated in the datasheet.
+
+```datasheet
+label: Thermal Barrier Nominal Width
+type: range
+unit: mm
+min: 6
+max: 60
+setpoints: [6, 10, 14, 16, 20, 24, 28, 32, 36, 40, 50, 60]
+```
+
+## A wider interruption lowers the assembly U-factor and raises the interior surface temperature, and it also deepens the profile and increases cost. Where the barrier is a rigid strut rather than a poured polymer, more shear is transferred between the two aluminum halves, so the composite member is stiffer for the same profile depth, and the two halves can be finished separately before assembly, which is what makes a different interior and exterior color possible. {note}
+
+## Composite thermal barrier framing shall have been evaluated in accordance with AAMA TIR-A8 for the shear transfer relied on in the structural calculations.
+
+## The thermal barrier shall be continuous through every framing member of the thermally broken portion of the assembly, and shall not be bridged by an anchor, fastener, reinforcement, or accessory that creates a continuous metal path between the exterior and interior faces.
+
+## Where a fastener must cross the thermal barrier, the Contractor shall submit the framing manufacturer's detail showing the isolation provided, and the thermal performance report shall reflect that detail.
+
+# Framing System Configuration {toc}
+
+## Framing Depth and Sightline {toc}
+
+### Framing depth sets the section modulus available to carry wind load and the pocket depth available for the glazing, and it governs the wall thickness the head, jamb, and sill details must resolve. Sightline is the exposed face dimension seen in elevation and is an independent selection. {note}
+
+### The nominal framing system depth shall be as indicated in the datasheet.
+
+```datasheet
+label: Framing System Nominal Depth
+type: range
+unit: in.
+min: 1.75
+max: 10
+setpoints: [1.75, 2, 2.5, 3.25, 4, 4.5, 5, 6, 7.5, 10]
+drawing_ref: "storefront section details"
+default: deferred
+```
+
+### The nominal exposed face dimension of framing members seen in elevation shall be as indicated in the datasheet.
+
+```datasheet
+label: Framing System Nominal Sightline
+type: range
+unit: in.
+min: 1
+max: 6
+setpoints: [1, 1.375, 1.75, 2, 2.5, 3, 4, 6]
+drawing_ref: "storefront elevations"
+default: deferred
+```
+
+### The framing depth shall be reconciled with the wall thickness, the head and sill flashing details, and the entrance door leaf thickness before the shop drawings are submitted.
+
+## Glazing Pocket Position {toc}
+
+### The position of the glazing pocket within the framing depth determines where the glass plane sits relative to the framing faces, which changes the elevation shading, the head and sill flashing geometry, and the depth of the interior and exterior reveals. {note}
+
+### The glazing pocket position within the framing depth shall be as indicated in the datasheet.
+
+```datasheet
+label: Glazing Pocket Position
+type: radio
+options:
+ - "Center set"
+ - "Front set toward the exterior"
+ - "Back set toward the interior"
+drawing_ref: "storefront section details"
+default: deferred
+```
+
+## Framing Joinery {toc}
+
+### The method used to join a horizontal to a vertical determines how the joint is sealed against water and how much of the vertical member's section is removed to make the connection. {note}
+
+### The framing joinery method shall be as indicated in the datasheet.
+
+```datasheet
+label: Framing Joinery Method
+type: select
+options:
+ - "Screw spline"
+ - "Shear block"
+ - "Stick set with sealed butt joints"
+ - "Captured pressure plate over a mullion body"
+```
+
+### Every framing joint shall be sealed with the sealant and in the sequence published by the framing manufacturer for the joinery method used, and the joint sealant shall be compatible with the glazing gaskets and the perimeter sealant.
+
+### Field-cut ends of framing members shall be deburred and sealed before assembly.
+
+## Mullion Spans and Reinforcement {toc}
+
+### Mullion spacing shall be [[drawing: as indicated on the storefront elevations]].
+
+### The unsupported span of every vertical mullion shall be verified against the framing manufacturer's published span tables for the design wind pressure, the tributary width, and the reinforcement condition furnished.
+
+### A slender aluminum mullion reaches its deflection limit before it reaches its stress limit, so long spans are governed by stiffness. Reinforcement raises stiffness without changing the exposed profile, and an intermediate support removes the span problem entirely at the cost of a structural attachment the building must provide. {note}
+
+### The vertical mullion reinforcement method shall be as indicated in the datasheet.
+
+```datasheet
+label: Vertical Mullion Reinforcement Method
+type: select
+options:
+ - "No reinforcement"
+ - "Steel tube inserted in the mullion cavity"
+ - "Aluminum stiffener inserted in the mullion cavity"
+ - "Steel plate reinforcement fastened within the mullion cavity"
+ - "Intermediate structural support at an intervening floor or beam line"
+```
+
+### Maximum lite dimensions shall be verified against ASTM E1300 for the design wind pressure and the glass make-up furnished, and the insulating glass unit submittal shall state the largest lite on the project.
+
+# Glass {toc}
+
+## Glass Lite Construction {toc}
+
+### Annealed, heat-strengthened, fully tempered, and laminated glass differ in strength, in fracture behavior, and in the fabrication that must precede heat treatment. Heat treatment relieves nothing after the fact, so every hole, notch, and edge finish is completed before the lite is heat treated. {note}
+
+### Flat glass shall conform to ASTM C1036.
+
+### Heat-strengthened and fully tempered glass shall conform to ASTM C1048.
+
+### Laminated glass shall conform to ASTM C1172.
+
+### Coated glass shall conform to ASTM C1376, and the coating type and the surface on which it is applied shall be stated in the insulating glass unit submittal.
+
+### The heat treatment of the outboard lite shall be as indicated in the datasheet.
+
+```datasheet
+label: Outboard Lite Heat Treatment
+type: select
+options:
+ - "Annealed"
+ - "Heat-strengthened"
+ - "Fully tempered"
+drawing_ref: "glazing schedule"
+default: deferred
+```
+
+### The lamination of the outboard lite shall be as indicated in the datasheet.
+
+```datasheet
+label: Outboard Lite Lamination
+type: radio
+options:
+ - "Monolithic"
+ - "Laminated"
+drawing_ref: "glazing schedule"
+default: deferred
+```
+
+### The nominal thickness of the outboard lite shall be as indicated in the datasheet.
+
+```datasheet
+label: Outboard Lite Nominal Thickness
+type: range
+unit: in.
+min: 0.125
+max: 0.75
+setpoints: [0.125, 0.1875, 0.25, 0.3125, 0.375, 0.5, 0.625, 0.75]
+drawing_ref: "glazing schedule"
+default: deferred
+```
+
+### The heat treatment of the inboard lite shall be as indicated in the datasheet.
+
+```datasheet
+label: Inboard Lite Heat Treatment
+type: select
+options:
+ - "Annealed"
+ - "Heat-strengthened"
+ - "Fully tempered"
+drawing_ref: "glazing schedule"
+default: deferred
+```
+
+### The lamination of the inboard lite shall be as indicated in the datasheet.
+
+```datasheet
+label: Inboard Lite Lamination
+type: radio
+options:
+ - "Monolithic"
+ - "Laminated"
+drawing_ref: "glazing schedule"
+default: deferred
+```
+
+### The nominal thickness of the inboard lite shall be as indicated in the datasheet.
+
+```datasheet
+label: Inboard Lite Nominal Thickness
+type: range
+unit: in.
+min: 0.125
+max: 0.75
+setpoints: [0.125, 0.1875, 0.25, 0.3125, 0.375, 0.5, 0.625, 0.75]
+drawing_ref: "glazing schedule"
+default: deferred
+```
+
+### Where fully tempered glass is furnished, the requirement for heat soak testing shall be as indicated in the datasheet.
+
+```datasheet
+label: Heat Soak Testing of Tempered Glass
+type: radio
+options:
+ - "Required for all fully tempered lites"
+ - "Not required"
+```
+
+### Nickel sulfide inclusions present in the glass batch can expand years after tempering and fracture a tempered lite with no external cause. Heat soak testing holds the tempered lite at elevated temperature long enough to break the affected lites in the factory rather than in the wall. {note}
+
+## Safety Glazing {toc}
+
+### Glazing in a hazardous location defined by the building code shall be safety glazing conforming to 16 CFR 1201 or ANSI Z97.1 at the category required by the code for the location.
+
+### Glazing in an entrance door leaf, in a sidelight adjacent to a door, and in any other hazardous location identified by IBC Section 2406 shall be fully tempered or laminated.
+
+### Heat-strengthened glass does not satisfy a safety glazing requirement, and shall not be furnished in a hazardous location.
+
+### Every safety glazing lite shall carry a permanent manufacturer marking identifying the fabricator and the safety glazing standard and category to which it conforms, located so that it remains visible after installation.
+
+## Laminated Glass Interlayer {toc}
+
+### Interlayer chemistry sets the post-breakage stiffness, the shear transfer between plies, the acoustic damping, and the ultraviolet and edge moisture tolerance of the laminate. A stiffer interlayer lets a laminate be counted on structurally after the glass has cracked; a softer or specifically damped interlayer buys sound attenuation instead. {note}
+
+### The laminated glass interlayer type shall be as indicated in the datasheet.
+
+```datasheet
+label: Laminated Glass Interlayer Type
+type: select
+options:
+ - "Polyvinyl butyral"
+ - "Acoustic-grade polyvinyl butyral"
+ - "Ionoplast"
+ - "Ethylene vinyl acetate"
+ - "Cast-in-place resin"
+```
+
+### The nominal laminated glass interlayer thickness shall be as indicated in the datasheet.
+
+```datasheet
+label: Laminated Glass Interlayer Nominal Thickness
+type: range
+unit: mil
+min: 15
+max: 120
+setpoints: [15, 30, 45, 60, 90, 120]
+```
+
+### Laminated glass edges concealed within the glazing pocket shall be sealed against moisture in accordance with the laminator's published instructions where the interlayer is moisture sensitive.
+
+## Low-Emissivity Coatings {toc}
+
+### Glass surfaces are numbered from the exterior, so surface 1 is the outdoor face of the outboard lite and the highest number is the indoor face of the innermost lite. A low-emissivity coating placed on a cavity-facing surface of the outboard lite rejects solar gain before it enters the cavity; the same coating on a cavity-facing surface of the inboard lite reflects interior heat back inward and admits more solar gain. Placement is therefore a climate and orientation decision, not a quality decision. {note}
+
+### The low-emissivity coating surface shall be as indicated in the datasheet.
+
+```datasheet
+label: Low-Emissivity Coating Surface
+type: select
+options:
+ - "No low-emissivity coating"
+ - "Surface 2"
+ - "Surface 3"
+ - "Surface 4"
+ - "Surface 2 and surface 4"
+ - "Surface 2 and surface 5"
+drawing_ref: "glazing schedule"
+default: deferred
+```
+
+### The low-emissivity coating type shall be as indicated in the datasheet.
+
+```datasheet
+label: Low-Emissivity Coating Type
+type: select
+options:
+ - "Pyrolytic hard coat"
+ - "Sputtered single silver"
+ - "Sputtered double silver"
+ - "Sputtered triple silver"
+```
+
+### A sputtered coating is not durable when exposed and shall be located on a cavity-facing surface of a sealed insulating glass unit, or shall be edge deleted and sealed in accordance with the coater's published instructions.
+
+# Insulating Glass Units {toc}
+
+## Unit Make-Up {toc}
+
+### The insulating glass unit configuration shall be as indicated in the datasheet.
+
+```datasheet
+label: Insulating Glass Unit Configuration
+type: select
+options:
+ - "Monolithic glazing with no sealed cavity"
+ - "Double glazed with one sealed cavity"
+ - "Triple glazed with two sealed cavities"
+default: "Double glazed with one sealed cavity"
+```
+
+### The nominal cavity thickness of each sealed cavity shall be as indicated in the datasheet.
+
+```datasheet
+label: Insulating Glass Unit Cavity Thickness
+type: range
+unit: in.
+min: 0.25
+max: 1
+setpoints: [0.25, 0.3125, 0.375, 0.5, 0.625, 0.75, 1]
+default: 0.5
+```
+
+### The insulating glass unit cavity fill shall be as indicated in the datasheet.
+
+```datasheet
+label: Insulating Glass Unit Cavity Fill
+type: radio
+options:
+ - "Air"
+ - "Argon"
+ - "Krypton"
+```
+
+### Cavity conductance falls as the cavity widens until convection begins within the cavity, after which further widening gives nothing back. A denser, less conductive fill gas both lowers conduction and shifts the onset of convection, which is why a krypton unit reaches its lowest conductance at a narrower cavity than an argon unit does. {note}
+
+### Insulating glass units shall be factory fabricated and delivered as sealed units.
+
+### Insulating glass units shall not be fabricated, cut, or modified at the project site.
+
+### The insulating glass unit fabricator shall be certified under a program that verifies conformance to ASTM E2190, and the certification shall be current at the time of fabrication.
+
+## Edge Seal and Spacer {toc}
+
+### The edge seal is the life-limiting component of an insulating glass unit. The primary seal is the vapor barrier and the secondary seal is the structural bond that holds the lites together and protects the primary seal; when the secondary seal is loaded in a way it was not designed for, the primary seal fails and the cavity fogs. {note}
+
+### The insulating glass unit spacer type shall be as indicated in the datasheet.
+
+```datasheet
+label: Insulating Glass Unit Spacer Type
+type: select
+options:
+ - "Roll-formed aluminum box spacer"
+ - "Roll-formed stainless steel spacer"
+ - "Thermoplastic spacer"
+ - "Structural foam spacer"
+ - "Silicone foam spacer"
+```
+
+### The insulating glass unit edge seal shall be as indicated in the datasheet.
+
+```datasheet
+label: Insulating Glass Unit Edge Seal
+type: select
+options:
+ - "Polyisobutylene primary with polysulfide secondary"
+ - "Polyisobutylene primary with polyurethane secondary"
+ - "Polyisobutylene primary with silicone secondary"
+ - "Single-seal silicone"
+ - "Single-seal thermoplastic"
+```
+
+### Spacer conductance sets the glass edge temperature, and the glass edge is the coldest interior surface of a glazed assembly in winter, so the spacer governs where condensation appears first and it moves the assembly condensation rating more than the cavity does. {note}
+
+### Where structural silicone glazing is indicated, the insulating glass unit secondary seal shall be silicone and shall be compatible with the structural silicone sealant, and the unit fabricator shall confirm that compatibility in writing.
+
+### Where a unit is set at an elevation substantially different from its point of fabrication, the unit fabricator shall state in the submittal whether a capillary or breather tube is furnished and how it is sealed after installation.
+
+# Glazing {toc}
+
+## Glazing Method {toc}
+
+### A dry glazed pocket seals against compressed gaskets on both faces of the lite and is assembled without cure time. A wet seal replaces or supplements a gasket with a field-applied sealant and depends on surface preparation and cure conditions. Structural silicone transfers wind load from the glass to the frame through the sealant itself, which makes the sealant a structural element with its own design, testing, and quality control requirements under AAMA CW-13 and AAMA SSGDG-1. {note}
+
+### The glazing method shall be as indicated in the datasheet.
+
+```datasheet
+label: Glazing Method
+type: select
+options:
+ - "Dry glazed with gaskets at both faces"
+ - "Wet glazed at the exterior face with a gasket at the interior face"
+ - "Wet glazed at both faces"
+ - "Two-sided structural silicone with captured opposing edges"
+ - "Four-sided structural silicone"
+```
+
+### Where structural silicone glazing is indicated, the structural silicone bite and glueline thickness shall be determined by calculation for the design wind pressure and the lite dimensions, and the calculation shall be included in the structural submittal.
+
+### Where structural silicone glazing is indicated, the Contractor shall submit the silicone manufacturer's adhesion and compatibility test results for every substrate the sealant contacts, and shall perform daily field adhesion testing during application in accordance with the sealant manufacturer's published procedure.
+
+### Where structural silicone is field applied, the Contractor shall record ambient temperature, relative humidity, substrate preparation, lot numbers, and the operator for each work period, and shall include those records in the closeout submittals.
+
+## Glazing Gaskets {toc}
+
+### The glazing gasket material shall be as indicated in the datasheet.
+
+```datasheet
+label: Glazing Gasket Material
+type: select
+options:
+ - "Ethylene propylene diene monomer"
+ - "Silicone"
+ - "Thermoplastic elastomer"
+ - "Neoprene"
+```
+
+### Dense elastomeric gaskets shall conform to ASTM C864 and cellular elastomeric gaskets shall conform to ASTM C509.
+
+### Gasket durometer and profile shall be as published by the framing manufacturer for the glazing pocket and the glass thickness furnished, so that the gasket is compressed within its working range at the design glass thickness.
+
+### Gaskets in contact with a silicone sealant or with a silicone insulating glass unit secondary seal shall be silicone or shall be confirmed compatible in writing by the sealant manufacturer.
+
+### An incompatible gasket can plasticize an adjacent sealant or stain the glass edge seal, and the failure appears months after glazing, when the affected units are already installed and finished around. {note}
+
+## Setting Blocks and Glass Clearances {toc}
+
+### The setting block material shall be as indicated in the datasheet.
+
+```datasheet
+label: Setting Block Material
+type: select
+options:
+ - "Ethylene propylene diene monomer"
+ - "Silicone"
+ - "Neoprene"
+```
+
+### The setting block durometer shall be as indicated in the datasheet.
+
+```datasheet
+label: Setting Block Durometer
+type: range
+unit: Shore A
+min: 50
+max: 95
+setpoints: [50, 60, 70, 80, 85, 90, 95]
+default: 85
+```
+
+### Setting blocks shall support the full width of the unit edge, including both lites and the edge seal of an insulating glass unit.
+
+### Setting blocks shall be located at the quarter points of the sill edge unless the framing manufacturer's published glazing instructions establish different locations for the lite size and aspect ratio furnished, in which case those locations shall govern.
+
+### A setting block placed under only one lite of an insulating glass unit loads the edge seal in shear and is a direct cause of premature seal failure. {note}
+
+### Edge clearance, face clearance, and glazing bite shall comply with the GANA Glazing Manual and the framing manufacturer's published glazing instructions, and the shop drawing section details shall dimension each of them.
+
+## Glazing Pocket Drainage {toc}
+
+### A captured aluminum glazing pocket is designed to admit and drain incidental water rather than to exclude it absolutely, so its performance depends entirely on the drainage path staying open. {note}
+
+### The exterior glazing pocket shall be drained to the exterior through weeps in the exterior glass stop or in the sill member.
+
+### Weep size, location, and spacing shall be as published by the framing manufacturer for the system furnished.
+
+### Weeps shall discharge onto an exterior surface that sheds the water clear of the wall below, and shall not discharge into a sealant joint, a concealed cavity, or a flashing pocket that has no outlet.
+
+### Internal framing drainage cavities shall be interconnected to a weeped outlet at every horizontal member and at the sill.
+
+### Weeps shall be left open and unobstructed, and the Contractor shall verify that every weep is open before the work is accepted.
+
+### Blocked weeps convert a drained pocket into a reservoir and are the most frequently identified cause of water reaching the interior through an otherwise correctly built storefront. {note}
+
+# Perimeter Sealant Joints {toc}
+
+## The perimeter joint between the storefront frame and the adjoining construction accommodates thermal movement of the aluminum relative to a substrate with a different coefficient of expansion, construction tolerance, and structural movement, all at once. Joint width follows from the total calculated movement and the movement capability of the sealant, so narrowing the joint to improve appearance moves the sealant outside its rated range. {note}
+
+## The perimeter sealant chemistry shall be as indicated in the datasheet.
+
+```datasheet
+label: Perimeter Sealant Chemistry
+type: select
+options:
+ - "Silicone"
+ - "Polyurethane"
+ - "Silyl-terminated polyether hybrid"
+ - "Polysulfide"
+```
+
+## The perimeter sealant shall conform to ASTM C920, Type S or Type M, Grade NS, at the movement class indicated in the datasheet.
+
+```datasheet
+label: Perimeter Sealant Movement Class
+type: range
+unit: '% movement capability'
+min: 12.5
+max: 100
+setpoints: [12.5, 25, 35, 50, 100]
+```
+
+## Sealant joints exposed to pedestrian traffic or to abrasion at a threshold or a sill shall be Grade P or shall be protected by a cover, and shall not be Grade NS.
+
+## The backer rod type shall be as indicated in the datasheet.
+
+```datasheet
+label: Backer Rod Type
+type: select
+options:
+ - "Closed-cell polyethylene"
+ - "Open-cell polyurethane"
+ - "Bi-cellular with a closed skin"
+```
+
+## An open-cell rod lets a moisture-cure sealant cure from both faces; a closed-cell rod punctured during installation outgasses into the uncured sealant and blisters the joint. The rod type therefore follows from the sealant chemistry rather than being an independent selection. {note}
+
+## Backer rod type shall be confirmed compatible with the selected sealant by the sealant manufacturer, and the Contractor shall not substitute a rod type without that written confirmation.
+
+## Joint width and depth shall comply with the sealant manufacturer's published joint design, sized for the calculated total movement between the storefront frame and the adjoining construction.
+
+## The sealant manufacturer shall confirm in writing the compatibility and adhesion of the selected sealant to the framing finish and to each adjoining substrate, based on samples of the actual materials to be used.
+
+## Where an adhesion test fails, the Contractor shall apply the primer or surface preparation directed by the sealant manufacturer and shall repeat the test at the Contractor's cost until it passes.
+
+# Entrance Doors {toc}
+
+## Door Leaf Proportions {toc}
+
+### Stile width sets the section available to resist the reaction of a closer arm and the anchorage of a lock or exit device, and it is also the most visible proportion of the door in elevation. The trade names narrow, medium, and wide stile refer to conventional dimension bands rather than to fixed values, and manufacturers differ on where the bands fall. {note}
+
+### The entrance door lock stile width shall be as indicated in the datasheet.
+
+```datasheet
+label: Entrance Door Lock Stile Width
+type: range
+unit: in.
+min: 1.75
+max: 6
+setpoints: [1.75, 2.125, 2.5, 3.5, 4.5, 5, 6]
+drawing_ref: "door schedule"
+default: deferred
+```
+
+### The entrance door bottom rail height shall be as indicated in the datasheet.
+
+```datasheet
+label: Entrance Door Bottom Rail Height
+type: range
+unit: in.
+min: 3.5
+max: 12
+setpoints: [3.5, 4, 5, 6, 6.5, 8, 10, 12]
+drawing_ref: "door schedule"
+default: deferred
+```
+
+### ICC A117.1 requires the push side of a door on an accessible route to present a smooth, uninterrupted surface within 10 in. of the floor, which a bottom rail satisfies directly and which otherwise requires an applied armor plate. {note}
+
+### The entrance door mid-rail arrangement shall be as indicated in the datasheet.
+
+```datasheet
+label: Entrance Door Mid-Rail
+type: radio
+options:
+ - "No mid-rail"
+ - "Mid-rail at lock height"
+drawing_ref: "door schedule"
+default: deferred
+```
+
+### A mid-rail provides the continuous section that a mortise exit device or a mortise lock case is housed in, so a leaf without one constrains the hardware that can be mounted on it. {note}
+
+### The entrance door leaf thickness shall be compatible with the framing pocket depth so that the leaf operates within its frame without binding and within the perimeter clearance the weatherseal is designed to close.
+
+## Door Leaf Construction {toc}
+
+### The entrance door corner construction shall be as indicated in the datasheet.
+
+```datasheet
+label: Entrance Door Corner Construction
+type: select
+options:
+ - "Mechanical mortise and tenon with sealed joints"
+ - "Screw spline with sealed joints"
+ - "Welded and dressed corners"
+ - "Deep penetration welded corners"
+```
+
+### The corner joint is where the leaf's racking resistance is developed and where water entering the glazing pocket collects, so it is both the structural and the water-management critical detail of the leaf. {note}
+
+### Every corner joint shall be sealed against water entry into the internal leaf cavity.
+
+### The internal cavity of the door leaf shall be drained to the exterior at the bottom rail.
+
+### Hardware anchorage in a door leaf shall bear on a reinforcement, a backing plate, or a tie rod within the stile or rail, and shall not rely on the extrusion wall alone.
+
+### Cyclical hardware loads work fasteners loose out of a thin extrusion wall over the life of a high-traffic entrance, and the resulting play is what eventually distorts the leaf. {note}
+
+## Door Glazing {toc}
+
+### Door leaf glazing shall be as indicated in the glazing schedule, and where the schedule does not identify a separate door glass type it shall match the adjacent storefront glazing.
+
+### Door leaf glazing and sidelight glazing shall satisfy the safety glazing requirements of this standard for hazardous locations.
+
+### Door leaf glazing stops shall be secured from the interior face of the leaf, or shall be secured with tamper-resistant fasteners where they occur on the exterior face.
+
+## Door Clearances and Accessibility {toc}
+
+### Doors on an accessible route shall comply with ICC A117.1 for clear opening width, maneuvering clearance, opening force, hardware operability, hardware mounting height, and threshold height.
+
+### The clear opening width of each entrance door leaf, measured between the face of the open leaf and the opposite stop with the leaf open 90 degrees, shall be as indicated in the datasheet.
+
+```datasheet
+label: Entrance Door Clear Opening Width
+type: range
+unit: in.
+min: 28
+max: 48
+setpoints: [28, 30, 32, 34, 36, 42, 48]
+drawing_ref: "door schedule"
+default: deferred
+```
+
+### The clear opening width of a door on an accessible route shall be not less than 32 in.
+
+### The maximum force required to operate the door hardware and set the leaf in motion shall be as indicated in the datasheet.
+
+```datasheet
+label: Maximum Door Opening Force
+type: range
+unit: lbf
+min: 3
+max: 30
+setpoints: [3, 5, 8.5, 15, 30]
+```
+
+### ICC A117.1 limits the opening force of an interior door on an accessible route to 5 lbf, and that limit applies to the force required to operate the hardware and overcome the closer, not to the force required to overcome a pressure differential across the opening. The building code sets separate, higher limits for exterior and other doors. {note}
+
+### Where the measured opening force at an exterior door exceeds the indicated limit because of wind, stack effect, or building pressurization, the Contractor shall report the condition to the Engineer of Record rather than reduce the closer spring power below the size required to reliably latch the leaf.
+
+### Threshold height above the adjacent finished floor shall be as indicated in the datasheet.
+
+```datasheet
+label: Maximum Threshold Height
+type: range
+unit: in.
+min: 0
+max: 0.75
+setpoints: [0, 0.25, 0.375, 0.5, 0.75]
+default: 0.5
+```
+
+### A change in level at a threshold exceeding 1/4 in. shall be beveled at a slope no steeper than 1:2.
+
+# Entrance Door Hardware {toc}
+
+## Hardware Sets and Coordination {toc}
+
+### Hardware shall be grouped into hardware sets, and each opening shall be assigned a hardware set [[drawing: as indicated on the door schedule]].
+
+### Every opening assigned the same hardware set shall receive identical hardware.
+
+### The hardware schedule shall be prepared or reviewed by a certified architectural hardware consultant.
+
+### The hardware schedule shall confirm for each opening that every scheduled item is compatible with the door stile and rail dimensions, is listed by its manufacturer for use on an aluminum stile and rail door, and satisfies the egress and accessibility requirements of the adopted code for that opening.
+
+### A device listed only for hollow metal or wood doors shall not be furnished on an aluminum entrance door without the device manufacturer's written confirmation of the application.
+
+### Where the parties disagree whether a scheduled item is suitable for an opening, the Engineer of Record shall make the initial determination.
+
+## Hanging Devices {toc}
+
+### An entrance leaf carries its weight through the hanging device across a service life measured in millions of cycles, so the hanging method sets both the sag behavior of the leaf and the floor and header construction the opening requires. A continuous device distributes the load along the full leaf height; a pivot concentrates it at two points and puts the closer, where a floor closer is used, into the floor construction. {note}
+
+### The entrance door hanging device shall be as indicated in the datasheet.
+
+```datasheet
+label: Entrance Door Hanging Device
+type: select
+options:
+ - "Continuous geared hinge"
+ - "Continuous pin and barrel hinge"
+ - "Offset top pivot with an offset bottom pivot"
+ - "Offset top pivot with a floor closer"
+ - "Center hung top pivot with a floor closer"
+ - "Butt hinges"
+```
+
+### Continuous hinges shall conform to ANSI/BHMA A156.26.
+
+### Where a floor closer is indicated, the Contractor shall coordinate the floor closer case, its recess, and its waterproofing with the floor construction before the slab is placed or the recess is formed.
+
+### The hanging device shall be sized by its manufacturer for the leaf weight, leaf width, and cycle rate of the opening, and the sizing basis shall be stated in the hardware submittal.
+
+## Door Closers {toc}
+
+### Door closers shall conform to ANSI/BHMA A156.4 and shall be sized by the closer manufacturer for the leaf weight, leaf width, and wind exposure of the opening.
+
+### The door closer mounting type shall be as indicated in the datasheet.
+
+```datasheet
+label: Door Closer Mounting Type
+type: select
+options:
+ - "Surface mounted on the door face"
+ - "Surface mounted on the frame"
+ - "Concealed in the transom bar"
+ - "Concealed in the door top rail"
+ - "Floor closer concealed in the floor"
+```
+
+### The door closer functions required shall be as indicated in the datasheet.
+
+```datasheet
+label: Door Closer Functions Required
+type: checkbox
+options:
+ - "Adjustable closing speed"
+ - "Adjustable latch speed"
+ - "Back-check"
+ - "Adjustable back-check position"
+ - "Delayed action"
+ - "Hold-open"
+ - "Adjustable spring power"
+default: ["Adjustable closing speed", "Adjustable latch speed", "Back-check"]
+```
+
+### Back-check resists the leaf beyond a set opening angle, which is what stops a wind-caught leaf from driving its hardware into the adjacent glazing or wall. It restrains the leaf; it does not stop it, so it does not replace a stop or holder. {note}
+
+### Each closer shall be adjusted at substantial completion so that the leaf latches reliably from the fully open position under the building's normal operating pressure differential, and so that the measured opening force complies with the limit indicated in the datasheet.
+
+### Where the two adjustments conflict at a given opening, the Contractor shall report the conflict to the Engineer of Record rather than resolve it unilaterally.
+
+## Exit Devices {toc}
+
+### Exit devices shall conform to ANSI/BHMA A156.3.
+
+### Where the adopted building code requires panic hardware or fire exit hardware for the occupancy and occupant load served by an opening, an exit device satisfying that requirement shall be furnished at that opening.
+
+### The exit device type shall be as indicated in the datasheet.
+
+```datasheet
+label: Exit Device Type
+type: select
+options:
+ - "No exit device"
+ - "Rim device"
+ - "Surface vertical rod device"
+ - "Concealed vertical rod device"
+ - "Concealed vertical cable device"
+ - "Mortise exit device"
+```
+
+### Vertical rod devices latch a leaf at its head and sill, which is what allows a pair of leaves to be secured without a fixed mullion; a rim device latches into a strike and therefore needs something fixed to latch into. The concealed variants place the rods within the leaf, which requires the leaf section to accommodate them. {note}
+
+### The exit device outside trim shall be as indicated in the datasheet.
+
+```datasheet
+label: Exit Device Outside Trim
+type: select
+options:
+ - "No outside trim"
+ - "Key cylinder that retracts the latch"
+ - "Lever trim operated by a key cylinder"
+ - "Lever trim without a cylinder"
+ - "Pull trim with a key cylinder"
+ - "Electrified lever trim"
+```
+
+### The exit device strike preparation, mounting anchorage, and projection from the leaf face shall be reconciled against the door stile and rail dimensions on the shop drawings before the device is procured.
+
+### Where an access control system controls entry through an opening, the exit device, its trim, and its electrical preparation shall be coordinated with the access control hardware and its power supply, and the coordination shall be shown in the hardware submittal.
+
+## Locking Hardware {toc}
+
+### The entrance door locking method shall be as indicated in the datasheet.
+
+```datasheet
+label: Entrance Door Locking Method
+type: select
+options:
+ - "No locking hardware"
+ - "Mortise hookbolt deadlock"
+ - "Mortise deadbolt"
+ - "Mortise lock with latch and lever"
+ - "Cylindrical lock with latch and lever"
+ - "Electric strike with a mortise latch"
+ - "Electromagnetic lock at the head"
+ - "Electrified exit device"
+```
+
+### A hookbolt engages a shallow strike by rotating into it, which is what allows a narrow stile leaf or a pair without a fixed mullion to be secured where a straight-throw bolt would have nothing to enter. {note}
+
+### An electrically locked opening shall release on loss of power, on activation of the fire alarm system, and on operation of the egress hardware, and the release means shall be shown on the hardware submittal.
+
+### Cylinders shall conform to ANSI/BHMA A156.5 and shall be keyed into the Owner's keying system, coordinated with [[sync/doors-frames-and-hardware]].
+
+### Cylinders shall be furnished with construction keying, and the Contractor shall void the construction keying and turn over the permanent keys at substantial completion.
+
+## Pulls and Push Hardware {toc}
+
+### Where an opening has no exterior lever trim and no exit device crossbar on the exterior face, exterior pull hardware shall be furnished.
+
+### The exterior door pull type shall be as indicated in the datasheet.
+
+```datasheet
+label: Exterior Door Pull Type
+type: select
+options:
+ - "Offset pull handle"
+ - "Straight ladder pull"
+ - "Exit device crossbar or touchbar serving as the pull"
+ - "Lever handle"
+ - "Flush pull"
+```
+
+### Auxiliary pull and push hardware shall conform to ANSI/BHMA A156.16.
+
+### Pull hardware shall be mounted at a height that complies with ICC A117.1 for operable parts on an accessible route.
+
+### Pull hardware shall be through-bolted to a reinforcement or backing plate within the stile.
+
+### Hardware finish shall be as indicated in the datasheet, designated by ANSI/BHMA A156.18 finish code.
+
+```datasheet
+label: Hardware Finish
+type: text
+drawing_ref: "hardware schedule"
+default: deferred
+```
+
+## Thresholds and Weatherseals {toc}
+
+### The threshold type shall be as indicated in the datasheet.
+
+```datasheet
+label: Threshold Type
+type: select
+options:
+ - "Saddle threshold beveled at both sides"
+ - "Offset threshold with a sealing strip"
+ - "Half-saddle threshold"
+ - "Recessed threshold set flush with the walking surface"
+ - "Thermally broken threshold"
+```
+
+### Thresholds shall be extruded aluminum, shall be set in a full bed of sealant on a continuous substrate, and shall be anchored so that the anchors do not penetrate the sill pan or subsill drainage path.
+
+### The door bottom seal shall be as indicated in the datasheet.
+
+```datasheet
+label: Door Bottom Seal
+type: select
+options:
+ - "Surface mounted brush sweep"
+ - "Surface mounted fin sweep"
+ - "Surface mounted adjustable sweep with an elastomeric insert"
+ - "Surface mounted automatic drop seal"
+ - "Concealed automatic drop seal mortised into the bottom rail"
+```
+
+### A drop seal is raised clear of the floor while the leaf swings and is driven down against the threshold as the leaf closes, so it can seal against a tighter clearance than a sweep that must ride over the floor through the whole swing. It also introduces a cam mechanism that requires adjustment and eventual replacement. {note}
+
+### The door perimeter weatherseal shall be as indicated in the datasheet.
+
+```datasheet
+label: Door Perimeter Weatherseal
+type: select
+options:
+ - "Pile weatherstrip set in a kerf"
+ - "Fin seal set in a kerf"
+ - "Compression bulb seal"
+ - "Adjustable jamb weatherstrip"
+```
+
+### Perimeter weatherseals shall be continuous at the head, at both jambs, and at the meeting stiles of a pair, with no gap at a corner or a transition.
+
+### Weatherseals and door bottom seals shall be replaceable from the accessible face without removing the leaf, the frame, or the threshold.
+
+# Aluminum Finishes {toc}
+
+## Finish Selection {toc}
+
+### An anodic coating is an integral conversion of the aluminum surface and its color comes from the oxide itself or from pigment deposited within it; an organic coating is applied over the metal and its color comes from the coating. The two families weather differently, are repaired differently, and differ in the color ranges available. {note}
+
+### The finish on exterior-exposed aluminum shall be as indicated in the datasheet.
+
+```datasheet
+label: Exterior Exposed Aluminum Finish
+type: select
+options:
+ - "Mill finish"
+ - "Architectural Class I clear anodic coating"
+ - "Architectural Class I integral color anodic coating"
+ - "Architectural Class I electrolytically deposited color anodic coating"
+ - "Architectural Class II clear anodic coating"
+ - "Architectural Class II integral color anodic coating"
+ - "Anodic coating with a clear organic topcoat per AAMA 612"
+ - "Organic coating per AAMA 2603"
+ - "Organic coating per AAMA 2604"
+ - "Organic coating per AAMA 2605"
+```
+
+### The finish on interior-exposed aluminum shall be as indicated in the datasheet.
+
+```datasheet
+label: Interior Exposed Aluminum Finish
+type: select
+options:
+ - "Same finish as exterior exposed aluminum"
+ - "Mill finish"
+ - "Architectural Class I clear anodic coating"
+ - "Architectural Class I integral color anodic coating"
+ - "Architectural Class II clear anodic coating"
+ - "Architectural Class II integral color anodic coating"
+ - "Anodic coating with a clear organic topcoat per AAMA 612"
+ - "Organic coating per AAMA 2603"
+ - "Organic coating per AAMA 2604"
+ - "Organic coating per AAMA 2605"
+```
+
+### A different interior and exterior finish requires that the two halves of a framing member be finished before they are joined, which is available where the thermal barrier is assembled from separately finished profiles and is not available where the barrier is poured into a single extrusion. {note}
+
+### The finish color shall be as indicated in the datasheet.
+
+```datasheet
+label: Finish Color
+type: text
+drawing_ref: "finish schedule"
+default: deferred
+```
+
+### The Contractor shall confirm with the coating applicator that the specified color, gloss, and any metallic or mica effect are available in the selected finish system before the finish is released, and shall report any unavailable combination to the Engineer of Record.
+
+## Anodic Coatings {toc}
+
+### Anodic coatings shall conform to AAMA 611 at the architectural class indicated in the datasheet.
+
+### Minimum anodic coating thickness and coating weight shall be as established by AAMA 611 for the indicated class:
+
+| Architectural class | Minimum coating thickness | Minimum coating weight |
+|---------------------|---------------------------|------------------------|
+| Class I | 0.7 mil | 32 mg/in² |
+| Class II | 0.4 mil | 17 mg/in² |
+
+### Anodic coating thickness governs how long the oxide layer resists the abrasion, weathering, and cleaning that will be applied to it, so the class is selected against the exposure and the expected maintenance rather than against appearance, which is indistinguishable between classes when new. {note}
+
+### Anodic color is developed in the oxide and varies with alloy chemistry, extrusion lot, bath condition, and rack position, so two runs of the same specified color will not match exactly. Anodized aluminum also cannot be touched up in the field the way an organic coating can. {note}
+
+### All anodized extrusions for a single storefront elevation shall be anodized from the same alloy lot and in a single production run, or shall be run in a controlled sequence with documented color matching between runs.
+
+### The Contractor shall submit range samples establishing the acceptable color limits before production anodizing begins, and finished work outside the accepted range shall be replaced at the Contractor's cost.
+
+## Organic Coatings {toc}
+
+### AAMA 2603, AAMA 2604, and AAMA 2605 establish progressively more demanding requirements for the same measured properties, principally color retention, gloss retention, chalk resistance, and film integrity after a stated period of South Florida exposure. The three are distinguished by the severity and duration of the exposure the coating must survive, not by the coating being a different kind of product. {note}
+
+### Organic coatings shall conform to the AAMA specification indicated in the datasheet, and the coating applicator shall furnish test data demonstrating conformance for the specific color furnished.
+
+### Organic coatings shall be applied to a pretreated surface in accordance with the coating manufacturer's published process, and the pretreatment shall be identified in the submittal.
+
+### Dry film thickness shall be as required by the applicable AAMA specification and shall be verified and recorded by the applicator for each production run.
+
+### Field touch-up of an organic coating shall be limited to abrasion and minor damage, shall use the coating manufacturer's air-dry touch-up product for the furnished color, and shall not be used to repair a member with damage to the substrate or to the pretreatment.
+
+### An air-dry touch-up is a different chemistry from the factory-cured coating and weathers differently, so an extensive touch-up will become visible as the surfaces age at different rates. {note}
+
+# Anchorage and Perimeter Conditions {toc}
+
+## Anchorage Methods {toc}
+
+### The storefront shall be anchored to the surrounding structure at the head, sill, and jambs by anchors sized and located by the project structural calculations.
+
+### The head anchorage method shall be as indicated in the datasheet.
+
+```datasheet
+label: Head Anchorage Method
+type: select
+options:
+ - "Steel angle welded to an embedded plate"
+ - "Mechanical expansion anchor into concrete"
+ - "Screw anchor into concrete"
+ - "Through-bolt to structural steel"
+ - "Self-drilling fastener to engineered light-gauge steel framing"
+ - "Through-bolt to structural wood blocking"
+```
+
+### The sill anchorage method shall be as indicated in the datasheet.
+
+```datasheet
+label: Sill Anchorage Method
+type: select
+options:
+ - "Anchor bolt embedded during the concrete pour"
+ - "Mechanical expansion anchor into cured concrete"
+ - "Screw anchor into cured concrete"
+ - "Anchorage through a subsill receptor into the substrate"
+ - "Steel angle welded to an embedded plate"
+```
+
+### The jamb anchorage method shall be as indicated in the datasheet.
+
+```datasheet
+label: Jamb Anchorage Method
+type: select
+options:
+ - "Steel clip welded to an embedded plate"
+ - "Mechanical expansion anchor into concrete or masonry"
+ - "Screw anchor into concrete or masonry"
+ - "Through-bolt to a steel jamb"
+ - "Self-drilling fastener to engineered light-gauge steel framing"
+```
+
+### Anchor spacing shall be as required by the structural calculations, and shall not exceed the maximum spacing published by the framing manufacturer for the design wind pressure and the member furnished.
+
+### Fasteners and anchors in contact with aluminum shall be stainless steel, or shall be a coated carbon steel isolated from the aluminum, so that the connection is not a galvanic cell.
+
+### Anchors shall not be installed into light-gauge steel framing, wood framing, or a substrate that has not been engineered to receive the calculated anchor reactions.
+
+### Where the surrounding construction cannot receive the anchor reactions, the Contractor shall report the condition to the Engineer of Record before installation, and reinforcement of the surrounding construction shall be provided before the storefront is set.
+
+## Movement Accommodation {toc}
+
+### The structure above a storefront deflects under live load and creep after the storefront is set, and the framing must absorb that movement without transferring the load above into the head member. {note}
+
+### The vertical movement allowance at the head anchorage shall be as indicated in the datasheet.
+
+```datasheet
+label: Head Anchorage Vertical Movement Allowance
+type: range
+unit: in.
+min: 0
+max: 2
+setpoints: [0, 0.25, 0.375, 0.5, 0.75, 1, 1.5, 2]
+drawing_ref: "structural drawings"
+default: deferred
+```
+
+### The head condition shall be detailed so that the indicated vertical movement is accommodated without loading the framing, without closing the perimeter joint below its minimum sealant width, and without loss of the air and water seal.
+
+### Anchor slots and clearances relied on for movement shall not be filled with sealant, grout, shim stock, or fastener heads that prevent the movement they were provided for.
+
+## Sill Water Management {toc}
+
+### A sill component that collects and drains incidental water is what keeps water that gets past the exterior seal from reaching the construction below. It only works if the water it collects has somewhere to go and cannot run off the end of the run. {note}
+
+### The sill water management method shall be as indicated in the datasheet.
+
+```datasheet
+label: Sill Water Management Method
+type: select
+options:
+ - "Continuous extruded aluminum subsill receptor"
+ - "Sheet metal sill pan flashing"
+ - "Flexible membrane sill pan flashing"
+ - "Fluid-applied sill pan flashing"
+ - "Direct anchorage to the substrate with a sealed joint"
+```
+
+### The sill end dam method shall be as indicated in the datasheet.
+
+```datasheet
+label: Sill End Dam Method
+type: select
+options:
+ - "End dam formed integrally with the subsill or pan"
+ - "Separate end dam piece sealed to the subsill or pan"
+ - "No end dam"
+```
+
+### Unless the datasheet indicates otherwise, an end dam shall be provided at every termination of a subsill or sill pan, including at each jamb and at each intermediate break in the run.
+
+### The sill component shall be drained to the exterior, and its drainage outlet shall discharge onto an exterior surface rather than into a concealed cavity.
+
+### Sill pan flashing, head flashing, end dams, and perimeter counterflashing shall be coordinated with [[sync/sheet-metal-flashing-and-trim]].
+
+### Sill and head flashings shall be installed and sealed before the storefront framing is set into the rough opening.
+
+### Water collected by a sill component that runs out an open end enters the wall construction directly below the sill, where it is concealed from view until the damage is substantial. {note}
+
+## Air and Water Control Layer Continuity {toc}
+
+### The air control layer and the water resistive barrier of the adjoining wall shall be sealed continuously to the perimeter of the storefront framing, with no break in either layer across the opening.
+
+### The perimeter air and water control transition shall be as indicated in the datasheet.
+
+```datasheet
+label: Perimeter Air and Water Control Transition
+type: select
+options:
+ - "Self-adhered flashing tape lapped to the frame face"
+ - "Fluid-applied flashing membrane lapped to the frame face"
+ - "Sheet transition membrane sealed to both the barrier and the frame"
+ - "Sealant and backer rod joint with a bond breaker"
+drawing_ref: "perimeter transition details"
+```
+
+### The transition material shall be confirmed compatible with the adjoining barrier, with the framing finish, and with the perimeter sealant by the transition material manufacturer.
+
+### Transition materials shall be lapped in shingle fashion from the bottom up so that water reaching the transition from above is directed onto the exterior face of the storefront or into the sill component, and never behind the barrier.
+
+### The Contractor shall obtain the Engineer of Record's observation of a completed perimeter transition at the first opening of each condition type before the transition is concealed by adjoining construction.
+
+# Delivery, Storage, and Handling {toc}
+
+## Framing members shall be delivered with the finish protected by a strippable film, a paper interleaf, or an equivalent protection, and the protection shall remain in place until the member is installed.
+
+## Materials shall be stored above grade, under cover, on skids or in racks, and shall be protected from standing water, from mortar and concrete splatter, and from ultraviolet degradation of gaskets and sealants.
+
+## Insulating glass units shall be stored upright on resilient blocking with air circulation between units, and shall not be stacked flat.
+
+## Glass stored in contact with standing water, or in a stack where water can be drawn between lites, stains at the glass surface, and the stain cannot be removed. {note}
+
+## Sealants, gaskets, and thermal barrier components shall be stored within the temperature range published by their manufacturers, and material stored outside that range or past its shelf life shall be removed from the site.
+
+## Damaged, deformed, or finish-marred members shall be replaced and shall not be repaired in the field except as permitted by the finish requirements of this standard.
+
+# Installation {toc}
+
+## Pre-Installation Coordination {toc}
+
+### Before storefront framing is delivered to the site, the Contractor shall conduct a pre-installation meeting attended by the storefront installer, the glazier, the trades installing the adjoining air barrier, flashing, and cladding, and the structural engineer's representative where anchorage is engineered.
+
+### The pre-installation meeting shall establish rough opening dimensions and tolerances, the sequence of perimeter barrier work relative to storefront installation, anchor type and embedment at each condition, glazing and hardware delivery timing, and the field test schedule.
+
+### Deficiencies in the adjoining construction identified at the meeting or at delivery shall be corrected before the storefront is installed.
+
+## Rough Opening Tolerances {toc}
+
+### Rough openings shall be plumb, level, and square within the framing manufacturer's published tolerances, and within the tolerance indicated in the datasheet, whichever is more stringent.
+
+```datasheet
+label: Rough Opening Tolerance
+type: range
+unit: in. per 12 ft
+min: 0.0625
+max: 0.5
+setpoints: [0.0625, 0.125, 0.1875, 0.25, 0.375, 0.5]
+default: 0.25
+```
+
+### An out-of-tolerance opening shall be corrected before framing is set.
+
+### Forcing framing to fit an out-of-square opening locks stress into the assembly, which distorts gasket compression, opens the perimeter joint unevenly, and shortens the life of the sealant. {note}
+
+## Framing Erection {toc}
+
+### Storefront framing shall be installed in accordance with the framing manufacturer's written instructions and ASTM E2112 where its practices apply to the condition.
+
+### The Contractor shall install the sill component and seal it to the substrate, then the jamb members, then the head member, then the intermediate horizontals and verticals, then the perimeter joint, then the glazing, and finally the doors and their hardware.
+
+### Framing members shall be installed plumb, level, and square.
+
+### Vertical members shall be within 1/16 in. of plumb over the full member height.
+
+### Horizontal members shall be within 1/16 in. of level over the full member length.
+
+### Misalignment shall be corrected by adjusting the anchorage or by refabricating the member, and shall not be corrected by shimming the member out of plane.
+
+### Aluminum in contact with concrete, masonry, mortar, or preservative-treated wood shall be separated from that material by a coating, a gasket, or a membrane.
+
+## Glazing Installation {toc}
+
+### Glazing shall be installed after the framing is complete, aligned, anchored, and protected from weather.
+
+### Glazing pockets shall be clean, dry, and free of debris and construction residue before a unit is set.
+
+### Units shall be set on setting blocks with the interior gasket continuous around the perimeter and the exterior stop and gasket fully engaged.
+
+### Gaskets shall be installed in continuous lengths, and where a splice is unavoidable it shall be located as directed by the framing manufacturer's published instructions and shall be sealed.
+
+### Insulating glass units shall not be cut, drilled, ground, or otherwise modified at the site, and a unit that does not fit its opening shall be replaced by the fabricator.
+
+### Site modification of a sealed unit breaches the edge seal, and the resulting failure is excluded from the unit warranty. {note}
+
+### Glazing sealants shall be applied within the temperature and humidity range published by the sealant manufacturer, and work performed outside that range shall be removed and replaced.
+
+## Door and Hardware Installation {toc}
+
+### Entrance doors shall be installed after framing and glazing are complete so that the leaves are not exposed to damage during those operations.
+
+### Hardware shall be installed and adjusted in accordance with each hardware manufacturer's written instructions.
+
+### Each closer shall be adjusted at substantial completion for closing speed, latch speed, back-check, and, where furnished, delayed action.
+
+### The Contractor shall measure and record the opening force at each door at substantial completion and shall include the record in the closeout submittals.
+
+### The hardware adjustment verification requirement shall be as indicated in the datasheet.
+
+```datasheet
+label: Hardware Adjustment Verification
+type: select
+options:
+ - "Installer adjusts and documents each opening"
+ - "Certified architectural hardware consultant adjusts and documents each opening"
+ - "Independent third party verifies and documents each opening"
+ - "Not required"
+```
+
+# Field Testing {toc}
+
+## Laboratory testing qualifies the system as designed; field testing verifies the assembly as built, including the perimeter transitions that no laboratory specimen contains. Field water test pressures are set below laboratory pressures by AAMA 502 and AAMA 503 because the field specimen includes those transitions and the chamber seal itself. {note}
+
+## The laboratory tests required shall be as indicated in the datasheet.
+
+```datasheet
+label: Laboratory Performance Tests Required
+type: checkbox
+options:
+ - "Air infiltration per ASTM E283"
+ - "Static water penetration per ASTM E331"
+ - "Cyclic water penetration per ASTM E547"
+ - "Structural performance per ASTM E330"
+ - "Thermal transmittance and condensation resistance per AAMA 1503"
+ - "Inter-story drift per AAMA 501.4"
+ - "Missile impact and cyclic pressure per ASTM E1886 and ASTM E1996"
+ - "Sound transmission loss per ASTM E90"
+default: ["Air infiltration per ASTM E283", "Static water penetration per ASTM E331", "Structural performance per ASTM E330"]
+```
+
+## The field tests required shall be as indicated in the datasheet.
+
+```datasheet
+label: Field Performance Tests Required
+type: checkbox
+options:
+ - "Diagnostic water spray check per AAMA 501.2"
+ - "Field air leakage per ASTM E783"
+ - "Field water penetration per ASTM E1105"
+ - "Newly installed fenestration product test per AAMA 502"
+ - "Newly installed storefront system test per AAMA 503"
+default: ["Diagnostic water spray check per AAMA 501.2"]
+```
+
+## The number of field test locations shall be as indicated in the datasheet.
+
+```datasheet
+label: Field Test Locations
+type: range
+unit: locations
+min: 0
+max: 20
+setpoints: [0, 1, 2, 3, 4, 5, 6, 8, 10, 15, 20]
+drawing_ref: "field test plan"
+default: deferred
+```
+
+## Field test locations shall be selected by the Engineer of Record to represent typical construction, and shall include at least one door perimeter and at least one typical mid-elevation bay where those conditions occur on the project.
+
+## The diagnostic water spray check per AAMA 501.2 applies a calibrated nozzle at no pressure differential and is used to locate leakage at gaskets, joints, and transitions during construction. It does not measure performance and does not satisfy a requirement for chamber testing. {note}
+
+## Field testing shall be scheduled after the storefront and the adjoining envelope construction at the test location are complete, and before interior finishes conceal the interior face.
+
+## The field test agency shall be independent of the storefront installer, and shall be engaged and paid by the Owner unless the Contract Documents assign that engagement otherwise.
+
+## Where a field test fails, the Contractor shall repair the deficiency and shall repeat the failed test at the same location at the Contractor's cost until it passes.
+
+## Where a field test fails, the Contractor shall bear the cost of the retest, of the repair, and of removing and reinstating any adjoining work required to make the repair.
+
+## Where two consecutive tests fail at different locations, the Engineer of Record may direct additional test locations, and the Contractor shall bear the cost of those additional tests and of any resulting repairs.
+
+## A repair requiring disassembly of framing shall be documented in writing before it is performed, and shall not void the warranty on framing sections not disassembled.
+
+# Cleaning and Protection {toc}
+
+## Construction Protection {toc}
+
+### Installed framing, glass, and hardware shall be protected from damage by adjoining construction operations from installation through substantial completion.
+
+### Protection shall include guards at door stiles and at exposed mullions where material handling occurs, covering at glass in openings through which construction traffic passes, and removal of abrasive debris before any cleaning operation.
+
+### Welding, cutting, and grinding shall not be performed within 25 ft of installed glass unless the glass is shielded by a sacrificial blanket or screen.
+
+### Weld spatter and grinding debris fuse into the glass surface and cannot be removed, so the affected lite is replaced. The cost of that replacement late in a project is far larger than the cost of the shielding. {note}
+
+### Runoff from concrete, masonry, mortar, and fireproofing shall be kept off the storefront finish and glass, and any that reaches those surfaces shall be removed before it dries.
+
+## Final Cleaning {toc}
+
+### At substantial completion, framing, glass, gaskets, and hardware shall be cleaned in accordance with the framing manufacturer's and the finish manufacturer's published cleaning procedures.
+
+### Acidic cleaners, alkaline cleaners, abrasive cleaners, and solvents not identified as acceptable by the finish manufacturer shall not be used on any finished aluminum surface.
+
+### Cleaning agents that damage an anodic or organic finish do so on first contact, and the damage is a permanent change to the finish rather than a soil that can be cleaned off. {note}
+
+### Glass shall be cleaned with a non-abrasive glass cleaner accepted by the glass fabricator.
+
+### Razor scraping shall not be performed on a coated glass surface.
+
+### The Contractor shall replace glass and finished members that cannot be restored to the accepted appearance standard by the permitted cleaning methods.
+
+# Warranty {toc}
+
+## The framing manufacturer shall warrant the framing system against defects in materials and workmanship, including the cost of replacement components and the labor to install them, for the term indicated in the datasheet.
+
+```datasheet
+label: Warranty Term — Framing System
+type: range
+unit: years
+min: 1
+max: 10
+setpoints: [1, 2, 3, 5, 10]
+default: 2
+```
+
+## The insulating glass unit fabricator shall warrant the units against seal failure, defined as visible obstruction, condensation, or film formation between the lites, for the term indicated in the datasheet.
+
+```datasheet
+label: Warranty Term — Insulating Glass Unit Seal
+type: range
+unit: years
+min: 5
+max: 20
+setpoints: [5, 10, 15, 20]
+default: 10
+```
+
+## The finish applicator shall warrant the finish against color change and gloss loss beyond the limits of the applicable AAMA specification, against chalking beyond those limits, and against film adhesion loss, for the term indicated in the datasheet.
+
+```datasheet
+label: Warranty Term — Finish
+type: range
+unit: years
+min: 5
+max: 30
+setpoints: [5, 10, 15, 20, 25, 30]
+```
+
+## The sealant manufacturer shall warrant the perimeter sealant against adhesive failure, cohesive failure, and loss of movement capability for the term indicated in the datasheet.
+
+```datasheet
+label: Warranty Term — Perimeter Sealant
+type: range
+unit: years
+min: 5
+max: 20
+setpoints: [5, 10, 15, 20]
+default: 10
+```
+
+## The hardware supplier shall warrant the entrance door hardware against defects in materials and workmanship for the term indicated in the datasheet.
+
+```datasheet
+label: Warranty Term — Entrance Door Hardware
+type: range
+unit: years
+min: 1
+max: 10
+setpoints: [1, 2, 3, 5, 10]
+default: 2
+```
+
+## Each warranty term shall begin at the date of substantial completion.
+
+## Warranties shall be written in the name of the Owner and shall be transferable for the remainder of their term.
+
+## Where a warranted component is repaired or replaced under warranty, the warranty on the repaired or replaced component shall run for a full new term from the date of that repair, or for the remainder of the original term, whichever is longer.
+
+## A re-warranty limited to the remainder of the original term expires almost immediately for a repair performed late in that term, which leaves the Owner with a new component and no coverage on it. {note}
+
+## Warranty repair shall include the cost of removing and reinstating adjoining work required for access, and the cost of repairing collateral damage caused by the warranted failure or by the repair.
+
+## Warranty exclusions shall be stated specifically in the warranty document, identifying the excluded cause and its scope.
+
+## A blanket exclusion that does not identify a specific cause shall not be accepted.
+
+## A field test performed under AAMA 502 or AAMA 503, and a repair performed to correct a field test failure, shall not be an excluded cause under any warranty furnished for this work.
+
+# Spare Parts and Maintenance Materials {toc}
+
+## The Contractor shall furnish spare parts and maintenance materials to the Owner at substantial completion, with a written inventory receipted by the Owner.
+
+## The spare parts furnished shall be as indicated in the datasheet.
+
+```datasheet
+label: Spare Parts Furnished
+type: checkbox
+options:
+ - "Glazing gasket stock by profile"
+ - "Door perimeter weatherseal stock by profile"
+ - "Door bottom seal assemblies"
+ - "Setting blocks by size"
+ - "Threshold sealing strips"
+ - "Door closer adjustment tools"
+ - "Exit device strikes and mounting hardware"
+ - "Cylinders keyed to the Owner's system"
+ - "Touch-up coating in each furnished color"
+default: ["Glazing gasket stock by profile", "Door perimeter weatherseal stock by profile", "Door closer adjustment tools", "Touch-up coating in each furnished color"]
+```
+
+## The quantity of gasket and weatherseal stock furnished, expressed as a percentage of the installed length of each profile, shall be as indicated in the datasheet.
+
+```datasheet
+label: Gasket and Weatherseal Spare Stock Quantity
+type: range
+unit: '% of installed length'
+min: 0
+max: 10
+setpoints: [0, 1, 2, 3, 5, 10]
+default: 2
+```
+
+## Spare gaskets, seals, and setting blocks shall be from the same production lot as the installed material where the material is lot-sensitive, and shall be labeled with the profile designation, the lot, and the date of manufacture.
+
+## Spare material stored beyond the shelf life published by its manufacturer is not usable for its intended repair, so the labeling is what lets the Owner know when the stock must be replaced rather than relied on. {note}