+---
+title: Common Work Results for Thermal and Moisture Protection
+category: Building Envelope
+toc_depth: 3
+description: >
+ When to use: Specify the cross-cutting, project-wide requirements that apply uniformly to all building-envelope (thermal and moisture protection) work on commercial, institutional, multifamily, and mixed-use projects governed by the IBC, IECC, and ASHRAE 90.1. This umbrella section declares the governing code basis and climate zone, sets common storage, handling, and environmental-condition limits, owns the air-and-water control-plane continuity and trade-coordination responsibility, and establishes the shared mock-up, installer-qualification, field-testing (blower-door, thermography, ASTM E1105 spray), and warranty baselines that every downstream envelope section inherits rather than restates.
+ Not intended for: Air barrier membranes and transitions (sync/air-barriers); vapor retarders (sync/vapor-retarders); thermal insulation (sync/building-thermal-insulation); architectural sheet metal flashing and trim (sync/sheet-metal-flashing-and-trim); joint sealants (sync/joint-sealants); membrane roofing (sync/membrane-roofing); below-grade waterproofing (sync/below-grade-waterproofing); EIFS (sync/exterior-insulation-and-finish-systems); curtain walls and glazing (sync/glazed-curtain-walls, sync/glazing); fireproofing (sync/fireproofing); firestopping (sync/firestopping); fluid-applied plaza/split-slab waterproofing (sync/fluid-applied-waterproofing); foundation drainage (sync/foundation-drainage); metal wall panels (sync/metal-wall-panels); and mechanical/plumbing pipe and duct insulation (sync/mechanical-insulation, sync/plumbing-insulation).
+---
+
+# Scope {toc}
+
+## The building envelope is one continuous system whose performance depends on how its layers join, so the requirements common to every envelope trade are declared once here rather than restated in each material section. {note}
+
+## Air barriers, vapor retarders, insulation, flashing, sealants, roofing, and waterproofing are each specified in their own section, but they share one governing code basis, one declared climate zone, one set of installation environmental limits, one mock-up regime, one field-testing framework, and one warranty philosophy. This common-work standard owns those shared requirements so the downstream sections inherit a consistent foundation instead of each restating, and inevitably contradicting, it. {note}
+
+## This standard establishes the project-wide requirements common to all thermal and moisture protection work and applies to commercial, institutional, multifamily, and mixed-use projects governed by the IBC, IECC, and ASHRAE 90.1.
+
+## This standard owns the continuity of the air-and-water control plane across the intersections of the envelope trades, including wall-to-roof, wall-to-foundation, and opening-perimeter transitions.
+
+## This standard governs the general project-wide envelope requirements only and does not specify any individual envelope product, material, or assembly.
+
+## The downstream envelope sections and the common procedural section govern their own material and process content; this standard owns only the cross-cutting requirements. {note}
+
+## Product material, composition, and material-specific installation are governed by the owning section: air barrier membranes and transitions by [[sync/air-barriers]], vapor diffusion retarders by [[sync/vapor-retarders]], thermal insulation by [[sync/building-thermal-insulation]], architectural sheet metal flashing and trim by [[sync/sheet-metal-flashing-and-trim]], joint sealants by [[sync/joint-sealants]], membrane roofing by [[sync/membrane-roofing]], below-grade waterproofing by [[sync/below-grade-waterproofing]], plaza-deck fluid-applied waterproofing by [[sync/fluid-applied-waterproofing]], EIFS by [[sync/exterior-insulation-and-finish-systems]], metal wall panel rainscreens by [[sync/metal-wall-panels]], foundation drainage by [[sync/foundation-drainage]], curtain walls and glazing by [[sync/glazed-curtain-walls]] and [[sync/glazing]], fireproofing by [[sync/fireproofing]], firestopping by [[sync/firestopping]], and mechanical and plumbing insulation by [[sync/mechanical-insulation]] and [[sync/plumbing-insulation]]. The administrative submittal and quality process common to all divisions is governed by [[sync/submittal-and-quality-procedures]]; this standard owns only the envelope-specific quality requirements. {note}
+
+# Basis of Design {toc}
+
+## The governing code editions and the project climate zone are the most consequential declarations in this standard, because every downstream envelope section makes climate-dependent and edition-dependent decisions from them. {note}
+
+## Vapor retarder class and placement side, minimum R-values, fenestration U-factor and SHGC limits, the air leakage pass/fail threshold, and the required vapor-control analysis all flow from the declared climate zone and the adopted code edition. If those declarations are absent, each subcontractor assumes its own basis and the assemblies do not agree at their boundaries. {note}
+
+## The Contractor shall confirm the editions of the IBC, IECC, and ASHRAE 90.1 actually adopted by the Authority Having Jurisdiction before specifications are finalized for construction.
+
+## Many jurisdictions run one to two code cycles behind the current publications; the adopted edition, not the most recent published edition, governs the work. {note}
+
+## As of this writing the most widely adopted commercial energy code is IECC 2021, with some jurisdictions still on 2018 or earlier, and ASHRAE 90.1-2022 is the current published edition. The declared editions below govern; do not assume the newest publication. {note}
+
+## The project climate zone shall be declared once in this section and shall govern all climate-dependent decisions in every downstream envelope section.
+
+## The basis-of-design declarations below govern unless superseded by the AHJ-adopted editions confirmed during permitting.
+
+```datasheet
+label: Governing building code edition (IBC)
+type: select
+options:
+ - "2021 IBC"
+ - "2018 IBC"
+ - "2024 IBC"
+ - "2015 IBC"
+default: "2021 IBC"
+```
+
+```datasheet
+label: Governing energy code basis
+type: radio
+options:
+ - "IECC (commercial provisions)"
+ - "ASHRAE 90.1"
+ - "IECC with ASHRAE 90.1 as alternative compliance path"
+default: "IECC (commercial provisions)"
+```
+
+```datasheet
+label: IECC edition
+type: select
+options:
+ - "2021 IECC"
+ - "2018 IECC"
+ - "2024 IECC"
+ - "2015 IECC"
+default: "2021 IECC"
+```
+
+```datasheet
+label: ASHRAE 90.1 edition (when ASHRAE path is used)
+type: select
+options:
+ - "90.1-2022"
+ - "90.1-2019"
+ - "90.1-2016"
+default: "90.1-2019"
+```
+
+```datasheet
+label: IECC climate zone for the project site
+type: select
+options:
+ - "Zone 1"
+ - "Zone 2"
+ - "Zone 3"
+ - "Zone 4"
+ - "Zone 5"
+ - "Zone 6"
+ - "Zone 7"
+ - "Zone 8"
+default: "Zone 5"
+```
+
+```datasheet
+label: Thermal envelope compliance path
+type: radio
+options:
+ - "Prescriptive (IECC Table C402.1.3 or ASHRAE 90.1 Table 5.5)"
+ - "Performance (whole-building energy modeling)"
+ - "Trade-off / envelope component performance (UA alternative)"
+default: "Prescriptive (IECC Table C402.1.3 or ASHRAE 90.1 Table 5.5)"
+```
+
+## R-values, U-factors, and SHGC limits shall be taken directly from the IECC or ASHRAE 90.1 tables appropriate to the declared climate zone and adopted edition.
+
+## This standard does not restate specific R-values or fenestration tables; the governing code tables for the declared climate zone are the authoritative source and supersede any value transcribed elsewhere. {note}
+
+## For reference only, the IECC 2021 prescriptive commercial fenestration maximum U-factor is on the order of 0.40 Btu/(h·ft²·°F) in Climate Zone 3, 0.36 in Zone 5, and 0.32 in Zones 6 through 8, and the prescriptive SHGC limit is 0.25 in Climate Zones 1 through 3 with no commercial SHGC limit at Zone 4 and above. These figures are illustrative; the controlling values are those in the adopted edition's table for the declared zone, confirmed by the Engineer of Record. {note}
+
+## Where moisture-control design analysis is required to validate vapor-control-layer placement, the analysis shall conform to ASHRAE 160.
+
+## Hygrothermal analysis per ASHRAE 160 establishes condensation risk and the correct side for the vapor control layer; it is the design basis the vapor retarder section relies on, which is why the requirement is declared here rather than in a single material section. {note}
+
+# Referenced Standards {toc}
+
+## Work under all envelope sections shall comply with the latest adopted edition of each of the following unless a specific edition is cited or the Authority Having Jurisdiction has adopted an earlier edition.
+
+## Where referenced standards conflict, the more stringent requirement shall govern unless the Engineer of Record directs otherwise in writing.
+
+| Standard | Title |
+|----------|-------|
+| IBC Chapter 14 | International Building Code — Exterior Walls |
+| IBC Section 1403 | Performance Requirements for Exterior Walls (water-resistive barrier) |
+| IBC Section 2603 | Foam Plastic Insulation (thermal barrier, NFPA 285 assembly testing) |
+| IECC | International Energy Conservation Code (commercial building envelope provisions) |
+| ASHRAE 90.1 | Energy Standard for Sites and Buildings Except Low-Rise Residential Buildings |
+| ASHRAE 160 | Criteria for Moisture-Control Design Analysis in Buildings |
+| ASTM E1105 | Field Determination of Water Penetration of Installed Exterior Windows, Skylights, Doors, and Curtain Walls by Static Air Pressure Difference |
+| ASTM E779 | Determining Air Leakage Rate by Fan Pressurization |
+| ASTM E3158 | Measuring the Air Leakage Rate of a Large or Multizone Building |
+| ASTM E2178 | Determining Air Leakage Rate and Calculation of Air Permeance of Building Materials |
+| ASTM E96/E96M | Gravimetric Determination of Water Vapor Transmission Rate of Materials |
+| ASTM E84 | Surface Burning Characteristics of Building Materials |
+| NFPA 285 | Fire Propagation Characteristics of Exterior Non-Load-Bearing Wall Assemblies Containing Combustible Components |
+| ASCE 7 | Minimum Design Loads and Associated Criteria for Buildings and Other Structures |
+| ANSI/SPRI ES-1 | Wind Design Standard for Edge Systems Used with Low Slope Roofing Systems |
+
+# Submittals {toc}
+
+## The administrative submittal process, transmittal format, review cycle, and resubmittal procedure are governed by [[sync/submittal-and-quality-procedures]]; this section enumerates only the envelope-specific items required across the material sections. {note}
+
+## The submittal hierarchy across the envelope sections is this common-work section first (code basis, climate zone, continuity coordination drawings, mock-up plan, and field-test plan), then each product-specific section (product data, samples, and shop drawings for that material). Reviewing the coordination submittals before the product submittals prevents a trade from being fabricated to a transition detail that has not been resolved. {note}
+
+## Action Submittals {toc}
+
+### Action submittals require the Engineer's review and acceptance before the related envelope work proceeds. {note}
+
+### The Contractor shall submit the following action submittals for the envelope work:
+- Product data for each envelope material, including manufacturer-published environmental installation limits (minimum substrate temperature, UV-exposure window, and rain hold-off period).
+- Samples of each exposed envelope material and finish, in the manufacturer's full range of available colors where a selection is required.
+- Shop drawings for each envelope assembly, including layer sequence and laps.
+- Air-and-water control plane continuity coordination drawings showing how each trade's work connects to adjacent trades at every transition.
+- Compatibility and adhesion documentation for materials placed in contact across section boundaries.
+
+```datasheet
+label: Action submittals (envelope common)
+type: checkbox
+options:
+ - "Product data with environmental installation limits"
+ - "Material samples in full color range"
+ - "Assembly shop drawings (layer sequence and laps)"
+ - "Air-and-water control plane continuity coordination drawings"
+ - "Compatibility and adhesion documentation"
+default:
+ - "Product data with environmental installation limits"
+ - "Material samples in full color range"
+ - "Assembly shop drawings (layer sequence and laps)"
+ - "Air-and-water control plane continuity coordination drawings"
+```
+
+## Informational Submittals {toc}
+
+### Informational submittals establish qualification and field readiness; they do not require sequential acceptance but shall be on file before the related work begins. {note}
+
+### The Contractor shall submit the following informational submittals before envelope installation begins:
+- Installer qualification records, including manufacturer training certificates and any third-party certifications required by this standard.
+- Manufacturer's instructions and printed installation procedures for each system.
+- Mock-up notification and the proposed mock-up review date.
+- Field-test plan identifying the test methods, the testing agency, and the construction-sequence stage at which each test occurs.
+
+```datasheet
+label: Informational submittals (envelope common)
+type: checkbox
+options:
+ - "Installer qualification records and certifications"
+ - "Manufacturer installation instructions"
+ - "Mock-up notification and review date"
+ - "Field-test plan with method, agency, and sequence stage"
+default:
+ - "Installer qualification records and certifications"
+ - "Manufacturer installation instructions"
+ - "Field-test plan with method, agency, and sequence stage"
+```
+
+## Closeout Submittals {toc}
+
+### Closeout submittals transfer warranties and as-installed records to the Owner at substantial completion. {note}
+
+### The Contractor shall submit the following closeout submittals at substantial completion:
+- Executed manufacturer material warranties for each envelope system.
+- Executed Contractor workmanship warranty covering the envelope as a coordinated whole.
+- Field-test reports for all whole-building air leakage, thermographic, and water-penetration testing.
+- Maintenance data and the manufacturer's repair procedures for each exposed envelope material.
+
+```datasheet
+label: Closeout submittals (envelope common)
+type: checkbox
+options:
+ - "Manufacturer material warranties"
+ - "Contractor workmanship warranty"
+ - "Field-test reports (air leakage, thermography, water penetration)"
+ - "Maintenance and repair data"
+default:
+ - "Manufacturer material warranties"
+ - "Contractor workmanship warranty"
+ - "Field-test reports (air leakage, thermography, water penetration)"
+ - "Maintenance and repair data"
+```
+
+# Quality Assurance {toc}
+
+## Envelope quality assurance is built on three controls declared here for the whole division: qualified installers, a pre-installation mock-up that exercises the trade transitions, and a defined responsibility for the continuous control plane. {note}
+
+## Installer Qualifications {toc}
+
+### Many air barrier, membrane, and waterproofing systems are only warranted when installed by a manufacturer-approved applicator; specifying the product without requiring the qualification can void the warranty before occupancy. {note}
+
+### The Air Barrier Association of America (ABAA) quality assurance program is the leading third-party certification for air barrier installation and is the common default on large commercial projects; manufacturer-trained or NRCA-certified installers are common for roofing. {note}
+
+### Each envelope material shall be installed by an installer meeting the qualification level specified for that system.
+
+### Air barrier installation on large commercial projects should be performed by a contractor accredited under the Air Barrier Association of America quality assurance program.
+
+### The installer of each system shall have completed the manufacturer's training program for that specific product where the manufacturer offers or requires such training.
+
+```datasheet
+label: Installer qualification level (general envelope baseline)
+type: radio
+options:
+ - "Manufacturer-trained installer"
+ - "Third-party certified (ABAA-accredited air barrier, NRCA ProCertified roofing)"
+ - "No specific qualification required"
+default: "Manufacturer-trained installer"
+```
+
+```datasheet
+label: Third-party quality assurance role
+type: radio
+options:
+ - "Owner's independent special inspector / envelope consultant"
+ - "Contractor's own documented QC program"
+ - "Owner's envelope consultant plus Contractor QC program"
+default: "Contractor's own documented QC program"
+```
+
+## Mock-Ups {toc}
+
+### A mock-up that includes only one trade misses exactly the transition conditions where the envelope fails; the value of the mock-up is that the air barrier, flashing, window, and cladding installers build their interfaces together under observation before any production work begins. {note}
+
+### The Contractor shall construct a pre-installation envelope mock-up before beginning field installation of the envelope.
+
+### The mock-up shall include all envelope layers and shall incorporate the wall-to-window, wall-to-roof, and penetration transition conditions present in the work.
+
+### The air barrier, flashing, window, and cladding installers shall each perform their portion of the mock-up so that the trade interfaces are built under the actual coordination sequence.
+
+### The Engineer shall review and accept the mock-up as a quality hold point, and field installation of the envelope shall not begin until the mock-up is accepted.
+
+### The accepted mock-up shall establish the standard of workmanship for the envelope work and shall remain available for reference until the related work is accepted.
+
+### The mock-up location shall be as shown on the drawings. [[drawing: mock-up location plan]]
+
+```datasheet
+label: Pre-installation mock-up required
+type: radio
+options:
+ - "Multi-trade mock-up with transition conditions"
+ - "Single-trade mock-up panel"
+ - "No mock-up required"
+default: "Multi-trade mock-up with transition conditions"
+```
+
+```datasheet
+label: Mock-up panel minimum size
+type: select
+options:
+ - "4 ft x 8 ft (small projects)"
+ - "8 ft x 10 ft (complex facades / multiple cladding types)"
+ - "Full bay, on-building mock-up"
+unit: ft
+default: "8 ft x 10 ft (complex facades / multiple cladding types)"
+```
+
+## Air-and-Water Control Plane Coordination {toc}
+
+### When water intrusion occurs and each subcontractor holds only a separate warranty, the air barrier, roofing, and flashing contractors each disclaim responsibility at the joint between them; designating a coordinating responsibility for the continuous plane prevents that gap. {note}
+
+### A single coordinating contractor shall be designated as responsible for maintaining the continuity of the air-and-water control plane at all transitions between envelope trades.
+
+### The coordinating contractor shall prepare and maintain the air-and-water control plane continuity coordination drawings required as an action submittal.
+
+### Each envelope trade shall coordinate its work with the adjacent trades so that the air barrier and water-resistive barrier are continuous across every transition and penetration.
+
+### The design shall declare which performance, air or water control, is required of which layer at each transition. {note}
+
+### The water-resistive barrier required by IBC Section 1403 controls liquid water infiltration; the air barrier required by the IECC controls bulk air leakage. A single product may serve both functions, but the two functions are not interchangeable, so no transition should rely on an unstated assumption about which layer does which job. {note}
+
+```datasheet
+label: Continuous plane coordination responsibility
+type: radio
+options:
+ - "Designated envelope coordinating subcontractor"
+ - "General Contractor self-perform coordination"
+ - "Owner's envelope consultant directs, GC coordinates"
+default: "Designated envelope coordinating subcontractor"
+```
+
+# Environmental and Service Conditions {toc}
+
+## Most fluid-applied and self-adhered envelope materials have published limits on substrate temperature, UV exposure, and rain hold-off; installing outside those windows is a leading cause of premature failure, so the limits are declared once here and enforced across every section. {note}
+
+## The most common manufacturer minimum application temperature for fluid-applied membranes is 40°F (4°C), though some products require 50°F (10°C); the controlling minimum is always the specific product's published data sheet. {note}
+
+## Materials shall be installed only when the substrate temperature, ambient temperature, and surface moisture are within the manufacturer's published limits for the specific product.
+
+## The minimum substrate temperature for fluid-applied membranes shall be confirmed against each product's published data sheet.
+
+## Exposed air barrier and membrane materials shall be covered by the subsequent layer within the manufacturer's published UV-exposure window.
+
+## Where cladding is delayed beyond the published UV-exposure window, the exposed membrane shall be covered or replaced as the manufacturer directs. {note}
+
+## Fluid-applied air barriers and self-adhered membranes carry UV-exposure windows that typically run from 30 to 180 days depending on the product; the window is tracked from the date of installation, not the date of inspection. {note}
+
+## Membrane and fluid-applied materials shall not be installed during precipitation or when precipitation is forecast within the manufacturer's rain hold-off period.
+
+## The Contractor should provide continuous temperature, humidity, and dew-point monitoring during installation of moisture-sensitive materials so that out-of-limit conditions are documented as they occur.
+
+```datasheet
+label: Minimum substrate temperature for fluid-applied envelope materials
+type: range
+unit: °F
+min: 20
+max: 60
+step: 5
+default: 40
+```
+
+```datasheet
+label: Environmental limits basis
+type: radio
+options:
+ - "Manufacturer published minimums govern"
+ - "Project-specific limits more stringent than manufacturer minimums"
+default: "Manufacturer published minimums govern"
+```
+
+```datasheet
+label: Continuous environmental monitoring during installation
+type: radio
+options:
+ - "Required for moisture-sensitive materials"
+ - "Required for all envelope installation"
+ - "Not required"
+default: "Required for moisture-sensitive materials"
+```
+
+# Fire and Combustibility {toc}
+
+## A foam plastic that passes ASTM E84 as an individual material can still fail NFPA 285 in the as-designed wall assembly; the assembly-level test is the one that governs combustible components in exterior walls, and missing it is a common and serious compliance failure. {note}
+
+## IBC Section 2603 also requires a thermal barrier, typically 1/2-inch Type X gypsum board, over exposed foam plastic, and IBC Section 2603.5 requires a tested and listed NFPA 285 assembly for exterior walls containing foam plastic above three stories. {note}
+
+## Foam plastic insulation shall meet the surface burning characteristics required by IBC Section 2603, classified per ASTM E84.
+
+## Exposed foam plastic insulation shall be separated from the interior by a thermal barrier meeting IBC Section 2603.4, providing at least the standard 15-minute thermal barrier of 1/2-inch Type X gypsum board.
+
+## Exterior wall assemblies that contain foam plastic insulation on buildings over three stories shall be tested and listed to NFPA 285 as the complete as-designed assembly.
+
+## The NFPA 285 listing shall match the actual assembly used in the work, including the specific insulation, water-resistive barrier, and cladding; substitution of any combustible component requires re-verification against a listing for the substituted assembly. {note}
+
+```datasheet
+label: NFPA 285 assembly compliance required
+type: radio
+options:
+ - "Required (combustible components, building over three stories)"
+ - "Not required (no combustible components in exterior wall)"
+ - "Not required (building three stories or less)"
+default: "Required (combustible components, building over three stories)"
+```
+
+# Testing {toc}
+
+## Field testing verifies that the coordinated envelope actually performs, not merely that each product was approved; the three common tests are whole-building air leakage, infrared thermography, and water-penetration spray testing of the completed openings and transitions. {note}
+
+## Whole-Building Air Leakage {toc}
+
+### A blower-door test scheduled too early misses partition and finish penetrations, while a test scheduled too late leaves no opportunity to find and repair leaks before the enclosure is closed; the construction-sequence stage of the test is therefore part of the requirement, not an afterthought. {note}
+
+### The whole-building compliance path under IECC C402.5 sets a threshold on the order of 0.40 cfm at 75 Pa per square foot of above-grade envelope area for commercial construction; the actual pass/fail threshold for the project is declared below. {note}
+
+### Whole-building air leakage shall be verified by fan pressurization when the chosen IECC compliance path requires it.
+
+### Single-fan pressurization testing shall be performed in accordance with ASTM E779.
+
+### Large or multizone buildings for which single-fan testing is impractical shall be tested in accordance with ASTM E3158.
+
+### Air barrier material compliance, where verified at the material level, shall demonstrate an air permeance not greater than 0.02 L/(s·m²) at 75 Pa per ASTM E2178.
+
+### The whole-building air leakage test stage in the construction sequence shall be defined so that the enclosure is complete but interior finishes still permit access for leak repair.
+
+```datasheet
+label: Whole-building air leakage test method
+type: radio
+options:
+ - "ASTM E779 single-fan pressurization"
+ - "ASTM E3158 multizone pressurization"
+ - "Not required (compliance path does not mandate testing)"
+default: "ASTM E779 single-fan pressurization"
+```
+
+```datasheet
+label: Whole-building air leakage limit (commercial, IECC C402.5 whole-building path)
+type: range
+unit: cfm75/ft²
+min: 0.25
+max: 0.40
+step: 0.05
+default: 0.40
+```
+
+```datasheet
+label: Air leakage test stage in construction sequence
+type: radio
+options:
+ - "Enclosure complete, before interior finishes conceal penetrations"
+ - "After all interior finishes"
+ - "At envelope closeout only"
+default: "Enclosure complete, before interior finishes conceal penetrations"
+```
+
+## Infrared Thermography {toc}
+
+### Infrared thermographic inspection locates thermal anomalies and air-leakage paths that a pressure test quantifies but does not map; pairing the two is far more diagnostic than either alone. {note}
+
+### The inspection is performed in a passive (radiometric scan under natural conditions) or active (blower-door-assisted) mode by a technician certified at thermography Level II per ASNT. {note}
+
+### Infrared thermographic inspection of the envelope should be performed to locate thermal bridging, missing insulation, and air-leakage pathways.
+
+### Thermographic inspection shall be performed by a technician holding Level II thermography certification.
+
+```datasheet
+label: Infrared thermographic inspection
+type: radio
+options:
+ - "Active mode (blower-door-assisted)"
+ - "Passive mode (natural conditions)"
+ - "Not required"
+default: "Active mode (blower-door-assisted)"
+```
+
+## Water-Penetration Field Testing {toc}
+
+### Field water-penetration testing wets a completed portion of the envelope under a controlled pressure difference and confirms that openings and transitions resist liquid water as built, catching workmanship defects at interfaces that a laboratory product rating cannot reveal. {note}
+
+### Field water-penetration testing of installed exterior openings and transitions shall be performed in accordance with ASTM E1105.
+
+### Water-penetration field testing shall apply a minimum spray rate of 5 US gal/(ft²·h) over the test area.
+
+### Water-penetration testing shall be performed by an independent testing agency, and the test locations and quantity shall be as accepted in the field-test plan.
+
+```datasheet
+label: Field water-penetration test method
+type: radio
+options:
+ - "ASTM E1105 (static air pressure difference)"
+ - "FM 4474 / 4477 spray protocol"
+ - "Not required"
+default: "ASTM E1105 (static air pressure difference)"
+```
+
+```datasheet
+label: Water-penetration field-test spray rate
+type: range
+unit: gal/(ft²·h)
+min: 5
+max: 8
+step: 0.5
+default: 5
+```
+
+```datasheet
+label: Number of field water-penetration test locations
+type: range
+unit: locations
+min: 1
+max: 12
+step: 1
+default: 3
+```
+
+# Roof Edge Wind Design {toc}
+
+## Roof edge metal is a frequent wind-failure initiation point; designing it to a tested wind class rather than to nominal gauge is what keeps the edge attached, so the wind basis is declared at the division level even though the edge metal itself is detailed in its own section. {note}
+
+## The design wind pressure is derived per ASCE 7 at the project location and building height; commercial projects commonly fall in the 30 to 90 psf range, and the ANSI/SPRI ES-1 classification requires a test pressure of at least 1.5 times the design wind pressure. {note}
+
+## Roof edge metal shall be designed for the wind pressures determined per ASCE 7 at the project location and building height.
+
+## Roof edge systems shall be classified to ANSI/SPRI ES-1, and the ES-1 test pressure shall be not less than 1.5 times the design wind pressure.
+
+```datasheet
+label: Roof edge ES-1 design wind pressure
+type: range
+unit: psf
+min: 30
+max: 90
+step: 5
+default: 60
+```
+
+# Installation {toc}
+
+## Sequencing is itself a quality requirement on the envelope, because the order in which trades build the transitions determines whether the control plane is ever continuous; a correct material installed in the wrong sequence still leaks at the joint. {note}
+
+## Envelope work shall be sequenced so that each layer is lapped and integrated with the adjacent trades' work in the direction of drainage and air-pressure continuity.
+
+## Penetrations through the envelope shall be flashed and sealed into the continuous air-and-water control plane as the penetrating element is installed, not after the fact.
+
+## Transitions between envelope materials made by different trades shall be installed in the sequence established by the accepted mock-up and continuity coordination drawings.
+
+## No envelope layer shall be concealed by a subsequent layer until the concealed work has passed any inspection or test required for that stage by the field-test plan.
+
+## Substrates shall be inspected and accepted by the installer of each envelope material before that material is applied; commencement of installation constitutes acceptance of the substrate. {note}
+
+# Delivery, Storage, and Handling {toc}
+
+## Envelope materials degrade when stored wet, hot, or in direct sun, and a compromised roll or pail installed into the wall is invisible until it fails; protected storage is therefore a shared requirement across all the material sections. {note}
+
+## Materials shall be delivered in the manufacturer's original packaging with labels and lot identification intact.
+
+## Materials shall be stored off the ground, under cover, and protected from moisture, direct sunlight, and temperature extremes outside the manufacturer's storage limits.
+
+## Materials with a published shelf life shall not be installed after their expiration date.
+
+## Damaged, wet, or expired materials shall be removed from the site and shall not be incorporated into the work.
+
+# Warranty {toc}
+
+## When each subcontractor furnishes only its own product warranty, a water intrusion at a trade interface produces a circle of disclaimers; a coordinating warranty scope, or defined warranty interfaces between sections, is what gives the Owner a single party to call. {note}
+
+## The common baseline is a manufacturer material warranty, typically 2 years for standard products and extended to 5 or 10 years on premium membrane systems installed by a manufacturer-approved applicator, paired with a Contractor workmanship warranty of at least 1 year per the AIA A201 General Conditions. {note}
+
+## The Contractor shall furnish the manufacturer's material warranty for each envelope system.
+
+## The Contractor shall furnish a Contractor workmanship warranty covering the envelope as a coordinated whole for not less than the duration specified.
+
+## A coordinating warranty scope shall be established so that responsibility for water intrusion at the interface between two envelope systems is assigned to a defined party rather than disclaimed by both.
+
+## Premium membrane systems installed by a manufacturer-approved applicator may carry an extended manufacturer warranty; where an extended warranty is required, the installer qualification necessary to obtain it shall be specified accordingly. {note}
+
+```datasheet
+label: Manufacturer material warranty (general envelope baseline)
+type: select
+options:
+ - "2 years (standard products)"
+ - "5 years"
+ - "10 years (premium membrane, approved applicator)"
+ - "15 years (premium membrane, approved applicator)"
+default: "2 years (standard products)"
+```
+
+```datasheet
+label: Contractor workmanship warranty duration
+type: range
+unit: years
+min: 1
+max: 5
+step: 1
+default: 2
+```
+
+```datasheet
+label: Envelope warranty coordination
+type: radio
+options:
+ - "Single coordinating envelope warranty"
+ - "Separate warranties with defined interface responsibility"
+ - "Separate warranties per section (not recommended)"
+default: "Separate warranties with defined interface responsibility"
+```