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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 />