Historical revision. This is editorial revision
1, kept so citations to it stay resolvable. It is not the current text
of this standard — see the current revision.
1.1This Standard covers the design, fabrication, finishing, delivery, and installation of pre-engineered and custom-fabricated metal canopies and awnings for exterior overhead weather protection.
NOTEA metal canopy or awning under this Standard is a permanent metal overhead cover comprising a structural frame of steel or aluminum, a metal roof deck or panel, a drainage provision, fascia and trim, and the anchorage that ties it to a building or to the ground. (1.2)
NOTEThe covered applications include building-entrance canopies, exterior walkway covers, drive-through lane covers, loading-zone and service-area covers, and fuel/gas-station island canopies. The structural configurations include wall-mounted cantilever (bracket), single- and multi-column free-standing, suspended cable- or rod-hung, and hybrid arrangements. The covered finishes are factory-applied fluoropolymer, high-performance powder coat, anodize, and galvanizing. (1.3)
NOTEFabric and tensile-membrane awnings are not covered by this Standard. (1.4)
NOTEFabric canopies are a distinct product family with a different structural basis, maintenance regime, and wind behavior, and are specified separately. (1.5)
NOTEStructural glass and glazed overhead canopies are covered by Glazed Curtain WallsGlazed Curtain WallsResolves to the current edition.sync/glazed-curtain-walls for the glazing portion and are not covered here. (1.6)
NOTEDecorative metal panels used as vertical wall cladding are covered by Metal Wall PanelsMetal Wall PanelsResolves to the current edition.sync/metal-wall-panels and are not covered here. (1.7)
NOTELoose miscellaneous-metal brackets, anchor plates, ledger angles, and custom structural elements that do not form a complete canopy assembly are covered by Metal FabricationsMetal FabricationsResolves to the current edition.sync/metal-fabrications. (1.8)
NOTESignage panels or letters mounted on a canopy fascia are covered by Exterior SignageExterior SignageResolves to the current edition.sync/exterior-signage, and canopy-mounted flagpoles are covered by FlagpolesFlagpolesResolves to the current edition.sync/flagpoles. (1.9)
NOTEPre-engineered metal building roof systems and building-scale clear-span shade structures are out of scope and are governed by metal-building manufacturer standards rather than this Standard. (1.10)
NOTEShop painting and galvanizing of loose steel sub-frames fabricated off-site as raw steel are covered by Shop Painting And GalvanizingShop Painting and Galvanizing of SteelResolves to the current edition.sync/shop-painting-and-galvanizing; finishing applied to the completed canopy assembly is covered here. (1.11)
1.12Select the structural material for the canopy.
Primary structural materialradio
● Aluminum (6063-T6 extrusion / 6061-T6 brackets)
○ Steel (HSS and rolled shapes, galvanized or painted)
2.1Equipment, materials, fabrication, and installation shall comply with the latest adopted edition of each of the following unless a specific edition is cited.
2.2Where referenced standards conflict, the more stringent requirement shall govern unless the Engineer of Record directs otherwise in writing.
Standard
Title
ASTM E2950
Standard Specification for Metal Canopy Systems
ASCE/SEI 7-22
Minimum Design Loads and Associated Criteria for Buildings and Other Structures
IBC 2024
International Building Code (Section 1607.12, roof live loads for canopies and awnings)
ASTM B221
Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes
ASTM A500
Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes (Grade B)
ASTM A992/A992M
Structural Steel Shapes
ASTM A36/A36M
Carbon Structural Steel
ASTM A653/A653M
Steel Sheet, Zinc-Coated (Galvanized) by the Hot-Dip Process
ASTM A123/A123M
Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products
ASTM F1554
Anchor Bolts, Steel, 36, 55, and 105 ksi Yield Strength
ASTM F593
Stainless Steel Bolts, Hex Cap Screws, and Studs
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 611
Anodized Architectural Aluminum
AWS D1.1/D1.1M
Structural Welding Code — Steel
AWS D1.2/D1.2M
Structural Welding Code — Aluminum
ACI 318
Building Code Requirements for Structural Concrete (Chapter 17, anchoring to concrete)
3Submittals
3.1The Contractor shall submit the following action submittals for review before fabrication:
Shop drawings showing canopy plan, elevations, sections, member sizes, connection details, anchorage layout, and interface with building structure and envelope.
Structural calculations for the complete canopy assembly and its anchorage, stamped and signed by a Professional Engineer licensed in the jurisdiction of the Project.
Finish samples (minimum 3 in. by 5 in.) of each specified coating on the actual substrate metal, showing color, gloss, and texture.
Product data for framing members, deck or panels, fasteners, sealants, isolation materials, and accessories.
Drainage details showing slope, gutter, scupper, downspout, and any through-wall flashing interface with the roofing or waterproofing system.
Action submittals requiredcheckbox
☑ Shop drawings
☑ PE-stamped structural calculations
☑ Finish samples on actual substrate
☑ Product data
☑ Drainage and flashing-interface details
3.2The Contractor shall submit the following informational submittals for review:
Welding procedure specifications and welder qualification records for steel or aluminum, as applicable.
Anchor manufacturer's evaluation report (ICC-ESR or equivalent) for any post-installed anchors.
Coordination confirmation from the building Structural Engineer of Record (EOR) accepting the canopy anchorage reactions imposed on the building structure.
Informational submittals requiredcheckbox
☑ Welding procedures and welder qualifications
☐ Post-installed anchor evaluation report
☑ EOR coordination confirmation of anchor reactions
3.3The Contractor shall submit the following closeout submittals before final acceptance:
Manufacturer's written finish and structural warranties.
Operation and maintenance data, including cleaning procedures for the specified finish and re-tightening intervals for anchor and connection hardware.
Record drawings reflecting as-built member sizes, anchorage, and drainage.
Closeout submittals requiredcheckbox
☑ Written finish and structural warranties
☑ Operation and maintenance data
☑ Record drawings
4Quality Assurance
NOTEThe canopy manufacturer shall be a firm regularly engaged in the design and fabrication of metal canopy systems of the type and scale required, with a minimum of five years of documented production. (4.1)
NOTEA canopy is a structure first and a finish second; an established fabricator carries the welding qualifications, finishing line, and engineering capacity that a general metal shop typically does not. (4.2)
4.3The canopy structure and its anchorage shall be designed by a Professional Engineer licensed in the jurisdiction of the Project.
4.4Welding of steel framing shall be performed by welders qualified under AWS D1.1.
4.5Welding of aluminum framing shall be performed by welders qualified under AWS D1.2.
4.6Welding procedures shall be qualified to the applicable AWS structural welding code before any production welding.
NOTEThe canopy manufacturer's stamped calculations do not relieve the building Structural Engineer of Record of responsibility for the building structure that receives the canopy reactions. (4.7)
NOTEThe most frequent field failure on canopy projects is an anchorage load that the building wall or frame was never reviewed to carry. The manufacturer designs the canopy; the EOR must accept the loads it delivers into the building. These are two separate engineering responsibilities and both must be discharged. (4.8)
4.9The Contractor shall coordinate canopy anchorage reactions with the building Structural Engineer of Record and obtain written acceptance before fabrication.
5Environmental and Service Conditions
NOTEDesign loads shall be established for the specific Project site rather than assumed from a generic value. (5.1)
NOTEWind and snow loads on a canopy are governed by site location, exposure, and the adjacent building geometry; a canopy designed to a generic load can be grossly unconservative on an exposed or snow-drift-prone site and uneconomical elsewhere. The fields below capture the site-specific basis. (5.2)
5.3Wind, snow, and live loads shall be determined in accordance with ASCE/SEI 7-22 and the adopted edition of the IBC.
5.4The basic wind speed (Vult) used for design shall be the value for the Project site.
Basic wind speed (Vult)range
mph
90180
Per drawings
5.5The wind exposure category shall be that determined for the Project site.
Wind exposure category (ASCE 7)radio
○ Exposure B
● Exposure C
○ Exposure D
NOTEComponents and cladding (C&C) wind pressures, not the main wind force resisting system (MWFRS) pressures, shall govern the attachment of roof panels, fascia, and soffit liners. (5.6)
NOTEC&C pressures are local and substantially higher than the overall MWFRS pressures; the panel-to-frame and trim attachments are the parts that blow off in a storm when this distinction is missed. (5.7)
5.8The ground snow load (pg) used for design shall be the value for the Project site.
Ground snow load (pg)range
psf
070
Per drawings
5.9Snow drift surcharge from any adjacent higher building wall or roof shall be included in the canopy roof load in accordance with ASCE/SEI 7-22 Section 7.8.
NOTEA canopy mounted below a taller wall is a classic drift trap, and the drifted load can be several times the balanced roof snow load. (5.10)
NOTEASCE/SEI 7-22 Section 7.8 governs drifts at walls and projections; ignoring it is one of the most common causes of canopy collapse under snow. Where the canopy abuts a higher wall, the drift surcharge must be computed from that wall height and added to the design roof load. (5.11)
5.12The roof live load shall be the larger of the value required by IBC 2024 Section 1607.12 and the governing snow load.
Roof live load (non-fabric skeleton)range
psf
1230
Default: 20 psf
NOTEReduction of roof live load below 20 psf shall be permitted only where IBC 2024 Section 1607.12.2 allows it for the tributary area, and not below 12 psf. (5.13)
NOTEThe code permits a reduction toward 12 psf for canopy areas over 200 sq ft, but 20 psf unreduced is the prudent default for small entrance canopies and is the basis assumed here unless the engineer takes the reduction. (5.14)
5.15The corrosion environment of the site shall be classified to drive material and finish selection.
Corrosion environmentradio
● Normal (inland, non-aggressive)
○ Coastal or marine (within ~1 mile of saltwater)
○ Industrial or aggressive chemical exposure
○ De-icing salt spray zone
5.16Seismic design category (SDC) applicability shall be confirmed, and lateral bracing of wall-mounted and free-standing canopies shall be designed accordingly.
NOTEIn SDC C and above, a wall-mounted canopy requires positive lateral bracing back to the building structure and a free-standing canopy requires a moment frame or diagonal bracing. (5.17)
NOTEGravity-only connections that are adequate in low-seismic regions are not adequate where seismic lateral demand applies; the lateral path must be designed explicitly, not assumed to come along with the gravity frame. (5.18)
6Structural Framing
6.1Aluminum framing members shall conform to ASTM B221, alloy and temper 6063-T6 for general extrusions.
6.2Aluminum brackets and members subject to higher stress shall be alloy and temper 6061-T6.
NOTEAluminum structural design shall use a minimum tensile yield strength of 25 ksi for 6063-T6 and 35 ksi for 6061-T6. (6.3)
NOTEThe two aluminum tempers are not interchangeable: 6063-T6 gives the clean extruded shapes and finish that suit fascia and rails, while 6061-T6 carries the load at brackets and connections. Designing brackets to the lower 6063 yield is unconservative. (6.4)
6.5Steel hollow structural section (HSS) framing shall conform to ASTM A500 Grade B, with a minimum yield strength of 46 ksi.
6.6Steel wide-flange and rolled-shape framing shall conform to ASTM A992, with a minimum yield strength of 50 ksi.
6.7Steel plate, bar, and angle for connections, base plates, and brackets shall conform to ASTM A36.
NOTEThe total-load deflection of any framing member shall not exceed L/240 of the span or 3/4 in., whichever is less. (6.8)
NOTEL/240 with a 3/4 in. cap is the published-guide-spec default for canopy framing; the absolute cap matters on short cantilevers where L/240 alone would permit a visibly sagging edge. (6.9)
6.10Thermal movement shall be accommodated in walkway covers and other long runs by slip joints or expansion connections.
NOTEAluminum expands about 0.0000128 in./in./°F, so a 100 ft run swinging 100°F moves roughly 1.5 in.; without a slip joint that movement buckles the frame or tears the anchorage. (6.11)
NOTELong, continuous aluminum walkway covers are the configuration most prone to this; the expansion joint locations and the temperature swing assumed must be shown on the shop drawings. (6.12)
6.13Select the fascia (visible edge) depth.
Fascia depth (visible edge height)range
in
824
Default: 12 in
6.14Select the canopy projection from the wall for wall-mounted configurations.
Projection / cantilever span from wallrange
ft
412
Default: 8 ft
NOTEWall-mounted bracket canopies projecting beyond approximately 10 ft generally require supplemental columns or a suspension system rather than a pure cantilever. (6.15)
NOTEBracket cantilever capacity falls off quickly with projection; beyond about 10 ft the bracket moment and the wall anchor tension usually become impractical, which is the boundary at which the single-column or suspended configuration takes over. (6.16)
7Roof Deck and Panels
7.1Select the roof panel or deck type.
Roof panel / deck typeradio
● Standing-seam metal roof panel
○ Flat or tapered insulated metal panel
○ Smooth flush metal deck
○ Open-frame grille (no solid roof)
7.2The roof panel shall be sealed and detailed to be watertight at all seams, end laps, and penetrations.
7.3Roof penetrations for drains, scuppers, conduit, or lighting shall be flashed and sealed as part of the canopy assembly, not left for field improvisation.
7.4Select the soffit liner treatment.
Soffit linerradio
● Integral flush metal soffit panel
○ Perforated metal soffit panel
○ Aluminum composite material (ACM) soffit panel
○ Open (no soffit liner)
7.5Where a soffit liner is specified, its panel type, finish, and any perforation pattern shall be fully specified rather than left to the Contractor.
NOTESpecifying only "metal soffit" without panel type, finish, and perforation pattern invites RFIs and value-engineering substitutions. (7.6)
NOTEThe soffit is the most-seen surface of an entrance canopy from below; under-specifying it reliably produces a downgrade. State the panel, the finish tier, and the perforation (open area and pattern) if perforated. (7.7)
7.8Select integral lighting provisions to be built into the canopy framing.
Integral lighting provisionsradio
○ Conduit and junction boxes in framing for downlights
○ Continuous LED strip channel in soffit/fascia
○ Conduit provision for canopy-top signage lighting
● No lighting provisions
7.9Conduit, junction boxes, and wireways for lighting shall be incorporated into the framing during fabrication and shall not be field-drilled into structural members after fabrication.
NOTEField drilling of structural aluminum after fabrication weakens the member and voids the manufacturer's warranty, so lighting raceways must be designed in. (7.10)
NOTEElectrical provisions also require Division 26 coordination, particularly for fuel-canopy and canopy-top signage lighting; the conduit stub-up and circuiting must be agreed before the frame is built. (7.11)
8Drainage
8.1Select the drainage strategy.
Drainage strategyradio
● Front-drain (pitched to fascia gutter)
○ Rear-drain (through wall flashing to downspout)
○ Internal scupper and overflow
8.2The roof shall be sloped a minimum of 1/8 in. per ft (1%) toward the drainage point.
8.3A slope of 1/4 in. per ft (2%) should be provided where the configuration permits, to avoid ponding from deflection and construction tolerance.
8.4Drainage components shall be sized for the design rainfall intensity and shall include overflow provisions where the primary drainage can be blocked.
8.5Rear-drain canopies penetrate the building envelope and shall have a counter-flashing and through-wall drainage detail coordinated with the roofing and waterproofing specification.
NOTEA rear-drain canopy turns the building wall into part of the canopy's water path, and an uncoordinated flashing detail leaks into the wall. (8.6)
NOTEThis is an interface, not a canopy-only detail: the through-wall flashing, counter-flashing, and downspout must be reconciled with the building envelope scope so neither trade assumes the other is sealing the penetration. (8.7)
9Finishes
9.1Select the finish system for the canopy.
Finish systemradio
● High-performance powder coat (AAMA 2604)
○ PVDF fluoropolymer, 70% resin (AAMA 2605)
○ Anodize, Class I (AAMA 611, 0.7 mil min)
○ Anodize, Class II (AAMA 611, 0.4 mil min)
○ Hot-dip galvanized (steel only, ASTM A123)
NOTEAluminum finishes shall comply with the referenced AAMA standard at the specified tier, and the finish tier shall be stated together with any color so that a lower-tier coating cannot be substituted. (9.2)
NOTESpecifying a color number alone lets the Contractor furnish an AAMA 2603 coating that chalks and fades in three to five years. The 80% case for commercial aluminum is AAMA 2604 high-performance powder coat color-matched to the adjacent storefront; coastal and aggressive sites step up to AAMA 2605 PVDF. (9.3)
9.4AAMA 2604 high-performance organic coatings shall be applied to a minimum 1.2 mil dry film thickness.
9.5AAMA 2605 superior-performing coatings shall contain a minimum 70% PVDF resin and shall carry a minimum 20-year color-retention warranty.
9.6Galvanized steel framing shall be hot-dip galvanized after fabrication in accordance with ASTM A123.
9.7Where galvanized or steel members contact aluminum members, the dissimilar metals shall be isolated with a non-conductive tape, gasket, or coating at every point of contact.
NOTEBare galvanizing in direct contact with aluminum sets up galvanic corrosion that eats the joint, so every dissimilar-metal contact must be isolated. (9.8)
NOTEThis applies at brackets, fasteners, and bearing surfaces alike; stainless fasteners are not a substitute for isolating a steel-to-aluminum bearing contact. (9.9)
9.10Select the visible finish color basis.
Finish colortext
Enter value...
Per drawings — color schedule
10Anchorage
10.1Select the anchorage method to the supporting structure.
Anchorage methodradio
● Cast-in anchor bolts (ASTM F1554)
○ Post-installed adhesive anchors into concrete
○ Post-installed mechanical anchors into concrete
○ Bolted to structural-steel embed plate
10.2Cast-in anchor bolts shall conform to ASTM F1554, Grade 36 or Grade 55 for column and bracket bases.
10.3Anchor rods for high-tension rod- or cable-hung systems shall conform to ASTM F1554 Grade 105.
10.4Anchor embedment and edge distances into concrete shall be designed in accordance with ACI 318 Chapter 17.
10.5Fasteners in coastal, marine, or aggressive chemical environments shall be stainless steel conforming to ASTM F593.
10.6Post-installed anchors shall be installed only into the base material and to the embedment, spacing, and edge distance given in the anchor manufacturer's current evaluation report.
10.7Select the anchor fastener material.
Anchor and connection fastener materialradio
● Hot-dip galvanized carbon steel
○ Zinc-plated carbon steel
○ Stainless steel (ASTM F593)
11Clearance and Egress
11.1The clear headroom beneath the canopy along any accessible route or means of egress shall be not less than 80 in.
NOTEIBC Section 1003.3 sets the 80 in. minimum headroom on accessible routes, and many authorities having jurisdiction apply the same minimum along covered walkways. (11.2)
NOTEThe fascia depth eats into headroom: a deep fascia on a low canopy can drop the clear dimension below 80 in. and force a redesign late. Check the fascia depth against the soffit-to-grade clearance early, and against fire-access-lane requirements where the canopy fronts a drive aisle. (11.3)
11.4Canopy clearance to fire-access lanes and to overhead clearances required by the authority having jurisdiction shall be verified against the design.
12Fuel and Service Canopy Provisions
12.1Fuel-island canopy soffits over fuel dispensers shall be fire-rated where required by the International Fire Code, the IBC, or the local fire code.
NOTEA fuel canopy is a distinct subtype: the soffit may need a fire rating and the structure commonly carries canopy-top signage and lighting, both of which pull in other trades. (12.2)
NOTEWhere a fire-rated soffit is required, coordinate the assembly with the Division 07 fireproofing scope; where canopy-top illuminated signage is present, coordinate the electrical provisions with Division 26 and the signage scope under Exterior SignageExterior SignageResolves to the current edition.sync/exterior-signage. (12.3)
12.4Select whether a fire-rated soffit is required for this canopy.
Fire-rated soffit requiredradio
● Not required
○ Required (rating per AHJ)
13Fabrication
13.1Canopy assemblies shall be shop-fabricated to the maximum extent practical, with field connections limited to bolted splices and anchorage.
13.2Welds shall be made in accordance with AWS D1.1 for steel and AWS D1.2 for aluminum, and exposed welds shall be ground smooth where they are visible in the finished work.
13.3Members shall be fabricated to the dimensions and tolerances shown on the reviewed shop drawings, and finish shall be applied after all fabrication, cutting, and drilling are complete.
14Testing
14.1Field welds, where permitted, shall be visually inspected in accordance with the applicable AWS structural welding code.
14.2Post-installed anchors shall be proof-loaded or torque-verified to the manufacturer's evaluation-report requirements where the report or the structural engineer requires it.
14.3The installed canopy shall be checked for the specified drainage slope and for absence of ponding before final acceptance.
15Installation
15.1The canopy shall be installed plumb, level, and true to line, within the manufacturer's published erection tolerances.
15.2Anchorage shall be installed in the base material accepted by the building Structural Engineer of Record, and any deviation discovered in the field shall be referred to the EOR before proceeding.
15.3Dissimilar-metal isolation shall be installed at every steel-to-aluminum contact during erection, not retrofitted afterward.
15.4Sealant joints at the fascia, soffit, and any wall interface shall be installed in accordance with the sealant manufacturer's instructions and shall be continuous and watertight.
15.5Penetrations of the building wall or roof for rear-drainage or anchorage shall be flashed and sealed in coordination with the responsible envelope trade.
15.6Touch-up of damaged shop finish shall match the original coating system, and galvanizing damage shall be repaired with a zinc-rich coating to ASTM A780.
16Delivery, Storage, and Handling
16.1Finished members shall be delivered with protective wrapping or strippable film and shall be handled with non-marring slings and spreaders.
16.2Members shall be stored off the ground, sloped to drain, and protected from standing water, construction traffic, and weld spatter.
16.3Damaged or deformed members shall be replaced rather than field-straightened where the damage affects structural capacity or finish.
17Warranty
17.1The manufacturer shall warrant the canopy structure against defects in materials and workmanship for a minimum of five years from Substantial Completion.
17.2The finish shall be warranted for the period associated with its tier: a minimum 10-year film-integrity warranty for AAMA 2604 and a minimum 20-year color-retention warranty for AAMA 2605.
17.3The warranty shall cover both repair or replacement of defective components and the cost of removing and reinstalling adjacent work disturbed by the corrective action.
18Spare Parts
18.1The manufacturer shall furnish touch-up finish material matched to each specified coating, in a quantity sufficient for field repair of minor damage.
18.2Where a proprietary panel clip, fastener, or trim profile is used, the Contractor shall furnish a documented quantity of spare components for future maintenance.