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INDIAN RIVER COUNTY — NORTH COUNTY REGIONAL PARK PAGE 9 <br />AQUATIC FACILITY ROOFING REPLACEMENT SECTION 074210 <br />JUNE 7, 2019 METAL WALL PANELS <br />D. Locate and space exposed fasteners in uniform vertical and horizontal alignment. Use proper <br />tools to obtain controlled uniform compression for positive seal without rupture of washer. <br />E. Install screw fasteners with power tools having controlled torque adjusted to compress washer <br />tightly without damage to washer, screw threads, or panels. Install screws in predrilled holes. <br />F. Provide sealant tape at lapped joints of metal wall panels and between panels and protruding <br />equipment, vents, and accessories. <br />G. Apply a continuous ribbon of sealant tape to weather -side surface of fastenings on end laps; on <br />side laps of nesting -type panels; on side laps of corrugated nesting -type, ribbed, or fluted panels; <br />and elsewhere as needed to make panels weathertight. <br />3.5 ACCESSORY INSTALLATION <br />A. General: Install accessories with positive anchorage to building and weathertight mounting, and <br />provide for thermal expansion. Coordinate installation with flashings and other components. <br />1. Install components required for a complete metal wall panel assembly including trim, <br />corners, seam covers, flashings, sealants, gaskets, fillers, closure strips, and similar items. <br />B. Flashing and Trim: Comply with performance requirements, manufacturer's written installation <br />instructions, and SMACNA's "Architectural Sheet Metal Manual." Provide concealed fasteners <br />where possible, and set units true to line and level as indicated. Install work with laps, joints, and <br />seams that will be permanently watertight and weather resistant. <br />1. Install exposed flashing and trim that is without excessive oil canning, buckling, and tool <br />marks and that is true to line and levels indicated, with exposed edges folded back to form <br />hems. Install sheet metal flashing and trim to fit substrates and to result in waterproof and <br />weather -resistant performance. <br />2. Expansion Provisions: Provide for thermal expansion of exposed flashing and trim. Space <br />movement joints at a maximum of 10 feet (3 m) with no joints allowed within 24 inches (605 <br />mm) of corner or intersection. Where lapped expansion provisions cannot be used or would <br />not be sufficiently weather resistant and waterproof, form expansion joints of intermeshing <br />hooked flanges, not less than 1 inch (25 mm) deep, filled with mastic sealant (concealed <br />within joints). <br />3.6 FIELD QUALITY CONTROL <br />A. Manufacturer's Field Service: Engage a factory -authorized service representative to inspect and <br />test completed metal wall panel installation, including accessories. <br />B. Remove and replace metal wall panels where tests and inspections indicate that they do not <br />comply with specified requirements. <br />3.7 CLEANING AND PROTECTION <br />A. Remove temporary protective coverings and strippable films, if any, as metal wall panels are <br />installed, unless otherwise indicated in manufacturer's written installation instructions. On <br />