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3 .3 INSTALLATION, GENERAL <br /> A. General: Anchor sheet metal roofing and other components of the Work securely in place, with <br /> provisions for thermal and structural movement. Install fasteners, solder, welding rods, protective <br /> coatings, separators, sealants, and other miscellaneous items as required for a complete roofing system <br /> and as recommended by fabricator for sheet metal roofing . <br /> 1 . Field cutting of sheet metal roofing by torch is not permitted. <br /> 2 . Provide metal closures at peaks, rake edges, rake walls, eaves and each side of ridge and hip caps. <br /> 3 . Flash and seal sheet metal roofing with closure strips at eaves, rakes, and perimeter of <br /> all <br /> openings. Fasten with self-tapping screws . <br /> 4 . Locate and space fastenings in uniform vertical and horizontal alignment. Predrill panels for <br /> fasteners . <br /> 5 . Install ridge and hip caps as sheet metal roofing work proceeds. <br /> 6 . Locate roofing splices over, but not attached to, structural supports . Stagger roofing splices and <br /> end laps to avoid a four-panel lap splice condition. Install backing plates at roofing splices. <br /> 7 . Install sealant tape where indicated. <br /> 8 . Lap metal flashing over sheet metal roofing to allow moisture to run over and off the material. <br /> 9 . Do not use graphite pencils to mark metal surfaces . <br /> B . Thermal Movement. Rigidly fasten metal roof panels to structure at only one location for each panel. <br /> Allow remainder of panel to move freely for thermal expansion and contraction. <br /> 1 . Point of Fixity: Fasten each panel along a single line of fixing located at eave, ridge and center of <br /> panel length. <br /> 2 . Avoid attaching accessories through roof panels in a manner that will inhibit thermal movement. <br /> C. Fasteners : Use fasteners of sizes that will penetrate wood sheathing not less than 1 - 1 /4 inches (32 mm) <br /> for nails and not less than 3/4 inch ( 19 mm) for wood screws . <br /> D . Metal Protection: Where dissimilar metals will contact each other or corrosive substrates, protect against <br /> galvanic action by painting contact surfaces with bituminous coating, by applying self-adhering sheet <br /> underlayment to each contact surface, or by other permanent separation as recommended by SMACNA. <br /> E . Conceal fasteners and expansion provisions where possible in exposed work and locate to minimize <br /> possibility of leakage . Cover and seal fasteners and anchors as required for a right installation. <br /> F . Fasciae : Align bottom of sheet metal roofing and fasten with blind rivets, bolts, or self-tapping screws . <br /> Flash and seal sheet metal roofing with closure strips where fasciae meet soffits, along lower panel edges, <br /> and at perimeter of all openings. <br /> 3 .4 ON-SITE, ROLL-FORMED SHEET METAL ROOFING INSTALLATION <br /> A. General: Install on-site, roll-formed sheet metal roofing fabricated from UL-certified equipment to <br /> comply with equipment manufacturer's written instructions for UL wind-uplift resistance class indicated. <br /> Provide sheet metal roofing of full length from eave to ridge unless otherwise restricted by on-site or <br /> shipping limitations . <br /> B . Standing-Seam Sheet Metal Roofing: Fasten sheet metal roofing to supports with concealed clips at each <br /> standing-seam joint at location, at spacing, and with fasteners recommended by manufacturer of portable <br /> roll-forming equipment. <br /> Wabasso Beach Park 07610 - 8 <br /> Indian River County <br /> DAA Project No . 6008 <br />