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B. For the record, prepare written report, endorsed by Installer, listing conditions detrimental to performance <br />of the Work. <br />C. Proceed with installation only after unsatisfactory conditions have been corrected. <br />3.2 UNDERLAYMENT INSTALLATION <br />A. General: Install underlayment as indicated on Drawings. <br />B. Self -Adhering Sheet Underlayment: Install self -adhering sheet underlayment, wrinkle free. Apply <br />primer if required by underlayment manufacturer. Comply with temperature restrictions of underlayment <br />manufacturer for installation; use primer rather than nails for installing underlayment at low temperatures. <br />Apply in shingle fashion to shed water, with end laps of not less than 6 inches (150 mm) staggered 24 <br />inches (600 mm) between courses. Overlap side edges not less than 3-1/2 inches (90 mm). Roll laps with <br />roller. Cover underlayment within 14 days. <br />3.3 INSTALLATION, GENERAL <br />A. General: Anchor sheet metal flashing and trim and other components of the Work securely in place, with <br />provisions for thermal and structural movement. Use fasteners, solder, welding rods, protective coatings, <br />separators, sealants, and other miscellaneous items as required to complete sheet metal flashing and trim <br />system. <br />1. Install sheet metal flashing and trim true to line and levels indicated. Provide uniform, neat seams <br />with minimum exposure of solder, welds, and sealant. <br />2. Install sheet metal flashing and trim to fit substrates and to result in watertight performance. <br />Verify shapes and dimensions of surfaces to be covered before fabricating sheet metal. <br />3. Space cleats not more than 12 inches (300 mm) apart. Anchor each cleat with two fasteners. <br />Bend tabs over fasteners. <br />4. Install exposed sheet metal flashing and trim without excessive oil canning, buckling, and tool <br />marks. <br />5. Install sealant tape where indicated. <br />6. Torch cutting of sheet metal flashing and trim is not permitted. <br />7. Do not use graphite pencils to mark metal surfaces. <br />B. Metal Protection: Where dissimilar metals will contact each other or corrosive substrates, protect against <br />galvanic action by painting contact surfaces with bituminous coating or by other permanent separation as <br />recommended by SMACNA. <br />1. Underlayment: Where installing metal flashing directly on cementitious or wood substrates, <br />install a course of felt underlayment and cover with a slip sheet or install a course of polyethylene <br />sheet. <br />C. Expansion Provisions: Provide for thermal expansion of exposed flashing and trim. Space movement <br />joints at a maximum of 10 feet (3 m) with no joints allowed within 24 inches (600 mm) of corner or <br />intersection. Where lapped expansion provisions cannot be used or would not be sufficiently watertight, <br />form expansion joints of intermeshing hooked flanges, not less than 1 inch (25 mm) deep, filled with <br />sealant concealed within joints. <br />D. Fastener Sizes: Use fasteners of sizes that will penetrate wood sheathing not less than 1-1/4 inches (32 <br />nun) for nails and not less than 3/4 inch (19 mm) for wood screws. <br />Wabasso Beach Park 07620-6 <br />Indian River County <br />DAA Project No. 6008 <br />