09-0096 07401 PREFORMED METAL WALL PANELS(for IDIQ metal siding).pdf

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*REVISION REVISED QJVF 09-0096

09 MAY 11

*DIVISION 7 - THERMAL AND MOISTURE PROTECTION

SECTION 07401

PREFORMED METAL WALL PANELS

1. GENERAL:

1.1 WORK INCLUDED:

1.1.1 The work of this section includes, but is not necessarily limited to, furnishing and installation of all preformed and prefinished metal wall panels with all related flashings, and accessory components as indicated and specified here in.

1.2 REFERENCE STANDARDS:

1.2.1 ASTM:

1.2.1.1 A370-03a

1.2.1.2 A792-97a

1.2.1.3 D522-93a

1.2.1.4 E228-95

1.2.1.5 E283-98

1.2.1.6 E331-93

1.3 SUBMITTALS:

1.3.1 Submit color samples. Panel color to match existing. Trim color to match existing.

1.3.2 Submit manufacturer's installation instructions and product data.

1.3.3 Shop drawings showing dimensions, layout of panels, anchoring details, joint details, trim, flashing, accessories, and sequence of installation.

1.3.4 Manufacturer's Warranty: Twenty-year written warranty

against cracking, peeling, and fade (not to exceed 5 N.B.S. units).

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1.3.5 Installer's Warranty: Five-year written non-prorated

warranty for watertightness of the installed system.

1.3.6 Recycled Content: Submit data for all used and new

materials that indicates quantity and weight of all recycled materials that are used in each delivery order.

2. MATERIALS:

2.1 SIDING:

2.1.1 Metal wall panels shall be manufactured in accordance with ASTM A 792-97a commercial quality smooth face 12-inch-wide panels with 1 1/2-inch depth with concealed fastening system. Panels shall have two equally spaced pencil gooves per panel. Panels shall be FW-12 panel in Parchment by Berridge Manufacturing Company or approved equal.

2.2 PANELS:

2.2.1 General:

2.2.1.1 All materials shall be 24-gauge, hot-dipped

galvanized steel (G-90) commercial quality, extra smooth primed and finished one side with Kynar 500 fluoropolymer coating 1.0 ± 0.1 mil total dry film thickness.

2.2.1.2 A wash coat of .3 to .4 mil dry film thickness shall

be applied to the reverse side.

2.2.2 Performance Criteria:

2.2.2.1 The finish coating shall conform to the following

tests and standards.

2.2.2.1.1 Hardness - F Minimum NCCA Technical

Bulletin 11-12.

2.2.2.1.2 Adhesion, Cross Hatch - 1/16 inch (no

removal): NCCA Technical Bulletin 11-5.

2.2.2.1.3 Formability, 2T Bend (no cracking or

removal): ASTM D 522-01.

2.2.2.1.4 Reverse Impact; no removal when tapped:

NCCA Technical Bulletin 11-6 (impact force - 70 in. - lbs.).

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2.2.2.2 The base metal shall conform to the following test

and standards:

2.2.2.2.1 Minimum Yield: 33,000 psi ASTM A370-03a.

2.2.2.2.2 Thermal Expansion - 6.7 x 106 in/in/F

degrees; ASTM E 228-95.

2.2.2.2.3 Modulus of Elasticity - 29 x 106;

ASTM E 111-97.

2.3 ACCESSORY COMPONENTS:

2.3.1 Accessory Components: Flashing & trim shall be of same

finish and material as wall panels.

2.3.2 Furring Channels: Shall be 1-1/2" inch hat channels, corrosion resistant.

2.3.3 Fasteners: Concealed fasteners with clips, galvanized

steel, as per manufacturer's recommendations.

2.3.4 Closures: Neoprene or polyethylene foam, die-cut or formed to panel configuration.

2.4 SEALANTS:

2.4.1 Sealants: Conforming to Fed. Specs. TT-S-001543 and TT-S- 00230.

2.4.2 Sealants and Gaskets: Type suitable for use with

installation of metal siding.

2.5 PREFINISHED STEEL: Fascia and Trim.

2.5.1 ASTM A370-03a hot-dipped galvanized steel (G-90) commercial quality, extra smooth primed and finished one side with Kynar Based Fluoropolymer Coating 1.0quality, extra smooth primed and finished one side with Kynar Based Fluoropolymer Coating 1.0 ± 0.1 mil. Total dry film thickness. Minimum gauge shall be 24. Opposite side shall have a wash coat of .3-.4 mil. Dry film thickness. Color to match existing fascia or as directed by Contracting Officer.

2.6 OTHER MATERIALS: Provide all other materials, not specifically described, but required to construct a complete watertight installation.

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3. EXECUTION:

3.1 PREPARATION OF SURFACES:

3.1.1 Patch existing insulation.

3.1.2 Remove existing siding and dispose of off base at the end of each work day.

3.2 FABRICATION:

3.2.1 Form angles for a watertight installation.

3.2.2 Soffits to be fabricated to match roof panels.

3.2.3 Corners, ridge vent and trim to be of the same material as panels. Fabricate to required shapes.

3.2.4 Miter internal corners, back brace with sheetrock.

3.2.5 Expansion Joints: Same material and finish as panels.

3.2.6 Ridge Vent: Fabricate to allow continuous air flow.

3.2.7 Form joints to allow for expansion.

3.3 ERECTION:

3.3.1 Permanently install panels to structure; align, level and plumb.

3.3.2 Install clips at 18" O.C. within 2 feet of all edges, and 24" O.C. in the center.

3.3.3 Provide expansion joints at 20 feet on center maximum.

3.3.4 Seal to prevent weather penetration.

3.3.5 Maintain neat appearance.

3.3.6 Touch up damaged paint surface.

3.3.7 Remove and/or extend existing light and receptacle boxes, as required or shown on drawings. All electrical work shall comply with National Electrical Code.

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3.4 TOLERANCES: Maximum offset from true alignment between adjacent members butting or in line: 1/8-inch.

END OF SECTION