Laserfiche WebLink
INDIAN RIVER COUNTY COURTHOUSE <br />METAL ROOFING REPLACEMENT PROJECT <br />JANUARY 15, 2021 <br />PAGE 11 <br />SECTION 074110 <br />STANDING SEAM METAL ROOF PANELS <br />Install sheet metal flashing and trim to fit substrates and achieve waterproof and <br />weather -resistant performance. <br />2. Expansion Provisions: Provide for thermal expansion of exposed flashing and <br />trim. Space movement joints at a maximum of 10 feet (3 m) with no joints allowed <br />within 24 inches (610 mm) of corner or intersection. Where lapped expansion <br />provisions cannot be used or would not be sufficiently weather resistant and <br />waterproof, form expansion joints of intermeshing hooked flanges, not less than 1 <br />inch (25 mm) deep, filled with mastic sealant (concealed within joints). <br />H. Gutters: Join sections with riveted and welded sealed joints. Attach gutters to eave with <br />gutter hangers and gutter straps, each spaced not more than 30 o.c. using <br />manufacturer's standard fasteners. Provide end closures and seal watertight with <br />sealant. Provide for thermal expansion. <br />Downspouts: Join sections with telescoping joints. Provide fasteners designed to hold <br />downspouts securely 1 inch (25 mm) away from walls; locate fasteners at top and <br />bottom and at approximately 60 inches (1524 mm) o.c. in between. <br />1. Provide elbows at base of downspouts to direct water away from building. <br />2. Connect downspouts to existing PVC downspouts. <br />J. Roof Curbs: Install flashing around bases where they meet metal roof panels. <br />K. Pipe Flashing: Form flashing around pipe penetration and metal roof panels. Fasten <br />and seal to metal roof panels as recommended by manufacturer. <br />3.5 ERECTION TOLERANCES <br />A. Installation Tolerances: Shim and align metal panel units within installed tolerance of <br />1/4 inch in 20 feet (6 mm in 6 m) on slope and location lines as indicated and within <br />1/8 -inch (3 -mm) offset of adjoining faces and of alignment of matching profiles. <br />3.6 FIELD QUALITY CONTROL <br />A. Manufacturer's Field Service: Engage a factory -authorized service representative to <br />test and inspect metal roof panel installation, including accessories. Report results in <br />writing. <br />B. Remove and replace applications of metal roof panels where tests and inspections <br />indicate that they do not comply with specified requirements. <br />C. Additional tests and inspections, at Contractor's expense, are performed to determine <br />compliance of replaced or additional work with specified requirements. <br />D. Prepare test and inspection reports. <br />