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1. Sheet metal to wood attachment (exposed): #12 stainless steel, 5/16 HWH with <br /> length to penetrate substrate a minimum of 1-1/2". Provide with bonded EPDM <br /> washer or washer specified below. <br /> 2. Sheet metal to wood attachment (concealed): #10 stainless steel, low profile <br /> pancake head with length to penetrate substrate a minimum of 1-1/2". <br /> 3. Sheet metal to light gauge steel attachment:#14-13 DPI stainless steel low profile <br /> pancake head of length as required for three threads to penetrate metal substrate or <br /> min. 1" penetration though wood substrates. <br /> 4. Sheet metal to sheet metal attachment (exposed): 1/4" x 7/8" carbon steel, self- <br /> drilling point,self-tapping,zinc alloy hex head screws with bonded EPDM tubular <br /> washer under head of fastener;screw heads to match color of wall panel by means <br /> of factory applied coating. <br /> C. Concrete and Masonry Anchors: 1/4"diameter metal based expansion anchor with stainless <br /> steel pin of length to penetrate substrate a minimum of 1-1/2". <br /> D. Washers: Shall be stainless steel with neoprene gasket backing. Shall be 9/16" diameter <br /> for use with#12 screws and 5/8"diameter for use with 1/4"diameter concrete and masonry <br /> anchors. <br /> E. Rivets: #44 stainless steel rivets with stainless steel mandrel. Length of rivet to properly <br /> fasten particular sheet metal components. Rivets shall be factory painted to match adjacent <br /> sheet metal. <br /> 2.07 RELATED MATERIALS <br /> A. PVC Flashing:20 mil corrosion resistant,waterproof PVC flashing. <br /> B. Compressible Insulation:Un-faced friction-fit fiberglass building insulation,cut to fit from <br /> 3-1/2"x 15"x48"batts. <br /> C. Polyurethane Sealant: One-component elastomeric gun grade polyurethane sealant <br /> conforming to ASTM C 920, Type S,Grade NS, Class 25, and use NT, M,A, G, or 0 as <br /> required by substrate conditions. Color to match adjacent materials. <br /> D. Sealant Tape:Minimum%2"wide non-skinning butyl sealant tape. <br /> E. Butyl Sealant: Shall be gun grade, non-skinning, non-hardening, flexible blend of butyl <br /> rubber and polyisobutylene sealant. <br /> F. Aluminum Tape: Pressure-sensitive, 2" wide aluminum tape used as a separation layer <br /> between small areas of asphalt contamination and the membrane and as bond breaker under <br /> the metal edge cover plates. <br /> G. Backer Rod: Closed-cell polyethylene or polyurethane rods sized approximately 25% <br /> larger than joint opening. <br /> H. Solder: 80-20 lead-TIN alloy conforming to ASTM B32. <br /> I. Flux: Muriatic acid killed with zinc or an accepted brand of commercial soldering flux <br /> designed for use with 80-20 solder. <br /> J. Non-Shrink Grout:High early strength,non-rusting non-shrink grout conforming to ASTM <br /> C 1107 Grade C (modified for rapid-setting grout) such as 747 Rapid Setting Grout as <br /> Sebastian Corners Roof Replacement 07 62 00-4 Sheet Metal Flashing and Trim <br />