ADD 1 - 02 Project Manual - 07 40 00 - ROOFING AND SIDING PANELS - Addendum 1.pdf

636a-21-701, EHRM Infrastructure Upgrades VAMC Grand Island, NE

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SECTION 07 40 00

ROOFING AND SIDING PANELS

PART 1 - GENERAL

1.1 DESCRIPTION

A. This section specifies uninsulated metal wall and roof panels as shown on contract documents.

1.2 RELATED WORK

A. Section 01 81 13, SUSTAINABLE CONSTRUCTION REQUIREMENTS: Sustainable

Design Requirements.

B. Section 07 92 00, JOINT SEALANTS: Sealant.

C. Section 09 06 00, SCHEDULE FOR FINISHES: Color and texture of finish.

1.3 QUALITY ASSURANCE

A. Manufacturer’s Qualifications: Provide metal wall and roof panels products of a manufacturer regularly engaged for not less than five

(5) years in the fabrication of metal panels of the type and design indicated.

B. Installer: A firm with three (3) years of successful experience with installation of roofing and siding panels of type and scope equivalent to Work of this Section. Submit installer qualifications.

1.4 SUBMITTALS

A. Submit in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT

DATA, AND SAMPLES.

B. Sustainable Design Submittals, as described below:

1. Postconsumer recycled content as specified in PART 2 - PRODUCTS.

C. Samples: Metal panel, 152 mm (6 inch) square, showing finish, each color and texture.

D. Shop Drawings: Wall and roof panels, showing details of construction and installation. Collateral steel framing thickness and kind of material, closures, flashing, fastenings and related components and accessories. Show interfaces and relationships to work at other trades and continuity with adjacent thermal, weather, air and vapor barriers.

E. Manufacturer's Literature and Data: Wall and roof panels

F. Fire Test Report: Report of fire test by recognized testing laboratory for fire rating specified, showing details of construction.

G. Manufacturer’s Certificates: Indicating manufacturer’s qualifications specified.

H. Installer qualifications.

I. Manufacturer warranty.

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1.5 QUALITY ASSURANCE

A. Approval by Contracting Officer Representative (COR) is required of products of proposed manufacturer.

B. Certify manufacturer has five (5) years continuous documented experience in fabrication of metal roofing and siding panels.

C. Source: For each material type required for work of this section, provide primary materials, which are products of one manufacturer.

Provide secondary or accessory materials, which are acceptable to manufacturers of primary materials.

D. Installer: A firm with a minimum of three (3) years’ experience in type of work required by this section and which is acceptable to manufacturers of primary materials.

1.6 WARRANTY

A. Construction Warranty: Comply with FAR clause 52.246-21 “Warranty of

Construction”.

B. Manufacturer Warranty: Manufacturer shall warranty their metal roofing and wall panels for a minimum of ten (10) years from the date of installation and final acceptance by the Government. Submit manufacturer warranty.

C. Warranty on Panel Finishes: Manufacturer’s shall warrant their roofing and wall panel finish and provide standard agreement to repair finish or replace metal panels that show evidence of deterioration of factory-applied finishes within specified warranty period.

1. Exposed Panel Finish: Deterioration includes, but is not limited to, the following:

a. Color fading more than 5 Hunter units when tested according to

ASTM D2244.

b. Chalking in excess of a No. 8 rating when testing according to

ASTM D4214.

c. Cracking, checking, peeling, or failure of paint to adhere to bare metal.

2. Finish Warranty Period: 20 years from date of installation and final acceptance by the COR.

1.7 APPLICABLE PUBLICATIONS

A. The publications listed below form a part of this specification to the extend referenced. The publications are referenced in the text by the basic designation only.

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B. American Architecture Manufacturers Association (AAMA):

611-14 ................. Anodized Architectural Aluminum

621-02 ................. Voluntary Specifications for High Performance

Organic Coatings on Coil Coated Architectural

Hot Dipped Galvanized (HDG) and Zinc-Aluminum

Coated Steel Substrates

2605-13 ................ Voluntary Specification, Performance

Requirements and Test Procedures for Superior

Performing Organic Coatings on Aluminum

Extrusions and Panels

C. American Iron and Steel Institute (AISI):

SG03-02 ................ Cold-Formed Steel Design Manual

D. ASTM International (ASTM):

A463/A463M-15 .......... Steel Sheet, Cold-Rolled, Aluminum-Coated, by the Hot-Dip Process

A653/A653M-20 .......... Steel Sheet, Zinc-Coated (Galvanized), or Zinc-

Iron Alloy-Coated (Galvannealed) by the Hot-Dip

Process.

A924/A924M-19 .......... Steel Sheet, Metallic Coated by the Hot-Dip

Process

A1008/A1008M-18 ........ Steel, Sheet, Cold-Rolled, Carbon, Structural, High Strength Low Alloy

B209-14 ................ Aluminum and Aluminum Alloy Sheet and Plate

B209M-14 ............... Aluminum and Aluminum Alloy Sheet and Plate

(Metric)

C553-19 ................ Mineral Fiber Blanket Thermal Insulation for

Commercial and Industrial Applications

C591-20. ............... Unfaced Preformed Rigid Cellular

Polyisocyanurate Thermal Insulation

C612-14(2019) .......... Mineral Fiber Block and Board Thermal

Insulation

C1396/C1396M-17 ........ Gypsum Board

D2244-16 ............... Calculation of Color Tolerances and Color

Differences from Instrumentally Measured Color

Coordinates

D4214-07(2015) ......... Test Methods for Evaluating the Degree of

Chalking of Exterior Paint Films

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E119-20 ................ Fire Test of Building Construction and

Materials

E283-19 ................ Test Method for Determining Rate of Air Leakage

Through Exterior Windows, Curtain Walls, and

Doors Under Specified Pressure Differences

Across the Specimen

E331-00(2016) .......... Test Method for Water Penetration of Exterior

Windows, Skylight, Doors, and Curtain Walls by

Uniform Static Air Pressure Difference

E1592-05(2017) ......... Standard Test Method for Structural Performance of Sheet Metal Roof and Siding Systems by

Uniform Static Air Pressure Method

E1646-95(2018) ......... Test Method for Water Penetration of Exterior

Metal Roof Panel Systems by Uniform Static Air

Pressure Difference

E1680-16 ............... Test Method for Rate of Air Leakage Through

Exterior Metal Roof Panel Systems

E1980-11(2019) ......... Calculating Solar Reflectance Index of

Horizontal and Low-Sloped Opaque Surfaces

E2140-01(2017) ......... Test Method for Water Penetration of Metal Roof

Panel Systems by Static Water Pressure Head

E. Cool Roof Rating Council (CRRC):

Standard-14

F. FM Global:

4471-10 ................ Class 1 Panel Roofs

G. Underwriters Laboratories (UL):

580-05(R2018) .......... Tests for Uplift Resistance of Roof Assemblies

Fire Resistance Directory

PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS ROOF PANELS

A. Basis of Design: Pac Clad Pac-150 Standing Seam Roof Panels

1. 24 gauge G-90 galvanized steel.

2. 1 1/2” leg height with continuous interlock.

3. 12” wide smooth with flat ribs panels.

4. 1:12 roof pitch.

5. Manufacturer’s stock color.

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B. Structural Performance: Provide metal panel systems capable of withstanding the effects of the following loads, based on testing according to ASTM E1592.

1. Wind Loads: As indicated.

2. Other Design Loads: As indicated.

3. Deflection Limits: For wind loads, no greater than 1/180 of the span.

C. Wind-Uplift Resistance: Provide metal roof panel assemblies that comply with UL 580 for wind-uplift-resistance class indicated.

1. Uplift Rating: UL 90.

2. Hail Resistance: SH.

D. Thermal Movements: Allow for thermal movements from ambient and surface temperature changes by preventing buckling, opening of joints, overstressing of components, failure of joints sealants, failure of connections, and other detrimental effects. Base calculations on surface temperatures of materials due to both solar heat gain and nighttime-sky heat loss.

1. Temperature Change (Range): 67 degrees C (120 degrees F), ambient;

100 degrees C (180 degrees F), material surfaces.

2.2 PERFORMANCE REQUIREMENTS FOR WALL PANELS

A. Basis of Design: Pac Clad Pac-150 Standing Seam Roof Panels

1. 24 gauge G-90 galvanized steel.

2. 1 1/2” leg height with continuous interlock.

3. 12” wide smooth with flat ribs panels.

4. Manufacturer’s stock color.

B. Structural Performance: Provide metal panel systems capable of withstanding the effects of the following loads, based on testing according to ASTM E1592.

1. Wind Loads: As indicated.

2. Other Design Loads: As indicated.

3. Deflection Limits: For wind loads, no greater than 1/180 of the span.

C. Thermal Movements: Allow for thermal movements from ambient and surface temperature changes by preventing buckling, opening of joints, overstressing of components, failure of joints sealants, failure of connections, and other detrimental effects. Base calculations on

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1. Temperature Change (Range): 67 degrees C (120 degrees F), ambient;

100 degrees C (180 degrees F), material surfaces.

2.3 SHEET STEEL

A. Minimum 24 gauge thick for wall and roof panels.

B. Steel, Sheet, Galvanized: ASTM A653/A653M and AISI SG03-3, Structural.

1. Grade 40, galvanized coating conforming to ASTM A924/A924M, Class Z

275 G-90.

C. Recycled Content of Steel Products: Postconsumer recycled content not less than 30 percent.

2.4 FASTENERS

A. Fasteners for Steel Panels: Galvanized or cadmium plated steel.

B. Fasteners of size, type and holding strength as recommended by panel manufacturer.

2.5 FABRICATION

A. General:

1. Furnish panels in one continuous length for full height, with no horizontal joints, except at cut-outs or openings as required for the passage of pipes, conduits, vents and the like.

2. Construct panels by pressing members together to form a structural unit with closed ends.

3. Overall thickness of panels is shown of the contract documents.

4. Provide connection between panels by interlocking male and female joints. Seal joints between related components as required to make the work water-tight. Refer to Section 07 92 00, JOINT SEALANTS for sealing compounds.

5. Provide collateral steel framing, metal and bituminous closures, fastenings, flashing, clip, caulking, and related components and accessories.

a. Accessories, fastenings, and flashings to be the same material and finish as the panels. Thickness and installation of accessories and flashing to be as recommended by the panel manufacturer.

2.6 FINISH

A. For uninsulated wall and roof panels, provide finishes as follows for face sheets. Prepare, pretreat, and apply coating to exposed metal

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B. .

C. Provide finishes for steel face sheets as follows. Prepare, pretreat, and apply coating to exposed metal surfaces to comply with coating and resin manufacturers’ written instructions.

1. Three-Coat Fluoropolymer: AAMA 2605. Fluoropolymer finish coating not less than 70 percent PVDF resin by weight in both color coat and clear topcoat.

2. Concealed Finish: Apply pretreatment and manufacturer’s standard white or light-colored acrylic or polyester backer finish consisting of prime coat and wash coat with a minimum total dry film thickness of 3 mm (0.5 mil).

PART 3 - EXECUTION

3.1 INSTALLATION

A. General: Install panels in accordance with the manufacturer's approved erection instructions and diagrams, except as specified otherwise.

B. Install panels in full and firm contact with supports and with each other at side and end laps.

C. Where panels are cut in the field, or where factory applied coverings or coatings are abraded or damaged in handling or installation, make finish repairs with material of the same type and color as the weather coating, before being installed.

D. Seal cut ends and edges, including those at openings through the sheets.

E. Correct defects or errors in the materials in a manner approved by the

COR.

F. Replace defective materials which cannot be corrected with nondefective material.

G. Provide molded closure strips where indicated and whenever sheets terminate with open ends after installation.

H. Wall Panels:

1. Apply panels with the configuration in a vertical position.

2. Provide panels in full heights from base to eave with no horizontal joints except at the junctions of door frames, window frames, louver panels, and similar locations.

3. Seal side and end laps with joint sealing material.

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4. Flash and seal walls at the base, at the top, around windows, door frames, framed louvers, and other similar openings. Install closure strips, flashings, and sealing material in an approved manner that will assure complete weather tightness.

5. Flashing is not required where approved "self-flashing" panels are used.

I. Roof Panels:

1. Apply roofing panels with the configurations parallel to the slope of the roof. Provide roofing panels in full lengths from top to eaves on shed roofs, with no transverse joints except at the junction of ventilators, curbs, skylights, chimneys and similar openings.

2. Lay side laps away from the prevailing wind, and seal side and end laps with joint sealing material.

3. Flash and seal the roof at the ridge, at eaves and rakes, at projections through the roof, and elsewhere as necessary.

4. Install closure strips, flashing, and sealing material in a manner that will assure complete weather tightness.

5. Install over minimum 5/8” fire-treated plywood.

6. Install with underlayment as directed by the manufacturer for type and location.

J. Flashing:

1. Provide flashing and related closures and accessories in connection with the preformed metal panels as indicated and as necessary to provide a watertight installation.

2. Install details of installation, which are not indicated, in accordance with the panel manufacturer's printed instruction and details, or the approved shop drawings.

3. Allow for expansion and contraction of flashing.

K. Fasteners:

1. Space fasteners in accordance with the manufacturer's recommendations, and as necessary to withstand the design loads indicated.

2. Install fasteners in valleys or crowns as recommended by the manufacturer of the panel being used.

3. Install fasteners in straight lines within a tolerance of 13 mm

(1/2-inch) in the length of a bay.

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4. Drive exposed penetrating type fasteners normal to the surface, and to a uniform depth to seat gasketed washers properly and drive so as not to damage factory applied coating.

5. Exercise care in drilling pilot holes for fastenings to keep drills perpendicular and centered in valleys, or crowns, as applicable.

After drilling, remove metal filings and burrs from holes prior to installing fasteners and washers. Do not torque fasteners to exceed values recommended by the manufacturer.

6. Remove panels deformed or otherwise damaged by over-torqued fastenings and provide new panels.

7. Remove metal shavings and filings from roofs on completion to prevent rusting and discoloration of the panels.

3.2 ISOLATION OF ALUMINUM

A. Isolate aluminum in contact with or fastened to dissimilar metals other than stainless steel, white bronze, or other metal compatible with aluminum by one of the following:

1. Painting the dissimilar metal with a prime coat of Zinc-Molybdate followed by two coats of aluminum paint.

2. Placing a non-abrasive tape or gasket between the aluminum and the dissimilar metal.

B. Paint aluminum in contact with, or built into mortar, concrete, plaster, or other masonry materials with a coat of alkali-resistant bituminous paint.

C. Paint aluminum in contact with wood or other absorptive materials that may become repeatedly wet, with two coats of bituminous paint, or two coats of aluminum paint. Seal joints with caulking material.

3.3 PROTECTION AND CLEANING

A. Protect panels and other components from damage during and after erection, and until project is accepted by the COR.

B. After completion of work, all exposed finished surfaces of panels are to be cleaned of soil, discoloration and disfiguration. Touch-up abraded surfaces of panels.

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