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11 <br />I <br />SECTION 07600 - FLASHING & SHEET METAL <br />Fabricated Sheet Metal <br />A. Generals <br />1. Conform to profiles and sizes shown, and comply with <br />"Architectural Sheet Metal Manual" by SMACNA, for each <br />general category of work required. <br />2. Drip Edge -- bunt to the configuration and dimensions shown <br />on the drawings. Finish as defined on the wall. section. <br />3. Seal all seams with epoxy, metal seam cement and, where <br />required for strength, rivet seams and joints. <br />4. Coat backside of flashing with. 15 -mil sulfur -free bitumin- <br />ous coating, F'S TT -C 494, where required to separate metals <br />from corrosive substrates including cementitious materials, <br />wood or othev absorbent materials; or provide other perma- <br />nent separation. <br />5. Provide for thermal expansion of running metal work, by <br />overlaps or expansion joints in fabricated work. Where re- <br />quired for watertight construction, provide hooked flanges <br />filled with polyisobutylene mastic for 1" embedment of <br />flanges. Space joints at intervals of not more than 301 <br />for aluminum. conceal expansion provisions where possible. <br />B. Installation Requirements: <br />1. Anchor Work in place with noncorrosive fasteners, adhe- <br />sives, setting compounds, tapes and other materials and <br />devices ds recommended by manufacturer of each material or <br />system. Provide for thermal expansion and building move- <br />ments. Comply with recommendations of "Architectural Sheet <br />Metal Manual{ by SMACNA. <br />2. Seal moving joints in metal work with elastomeric sealants, <br />complying with F'S SS -T-00227 - 00230, or 001543. <br />3. Clean metal surfaces of soldering flux and other substances <br />which could cause corrosion. <br />4. Performance: Water-tight/weatherproofing performance of <br />flashing is raquiled. <br />***END OF SECTION*** <br />07600-1 <br />