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Vol 2 - Garney Construction

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C. Finish: Factory finished with an Architectural Class I clear anodic coating in0.70-mil thickness.2.04 DOWNSPOUTS, SCUPPERS, AND CONDUCTOR HEADSA. Same metal and thickness as flashing.2.05 ANCILLARY MATERIALSA. Solder: ASTM B32, alloy composition Sn 50 and Sn 60 for stainless steel.B. Soldering Flux: ASTM B32, Type RA.C. Sealing Tape: Polyisobutylene sealing tape specifically manufactured forsetting flanges on bituminous roofing.D. Isolation Paint: As specified in Section 09 90 00, Painting and Coating.E. Isolation Tape: Butyl or polyisobutylene, internally reinforced, or 20-mil thickminimum polyester.F. Plastic Roof Cement: ASTM D4586, Type II.G. Elastomeric Sealant: ASTM C920, elastomeric silicone polymer sealant; oftype, grade, class, and use classifications required to seal joints in sheet metalflashing and trim and remain watertight.H. Butyl Sealant: ASTM C1311, single-component, solvent-release butyl rubbersealant, polyisobutylene plasticized, heavy bodied for hooked-type expansionjoints with limited movement.I. Fasteners:1. For Galvanized Steelwork: Steel, galvanized per ASTM A153/A153Mor stainless steel fasteners.2. For Aluminum Work: Stainless steel or aluminum; reglet fasteners maybe galvanized or cadmium-plated steel.3. For Stainless Steelwork: Stainless steel.4. Nails: Roofing nailhead, 10-gauge spiral or ring shank, lengths asrequired to penetrate wood at least 3/4 inch or as required in ArticlePerformance Requirements.PW/WBG/382059SHEET METAL FLASHING AND TRIMAUGUST 15, 2012 07 62 00 - 5©COPYRIGHT 2012 CH2M HILL

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