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ST. BARBARA CATHOLIC SCHOOL TASK 2 75-24272-01 <br />DIOCESE OF ORANGE SEPTEMBER 12TH, 2024 <br />SANTA ANA, CA BID & PERMIT SET <br /> <br />METAL BUILDING SYSTEMS 133419 - 18 <br />D. Metal Fascia Panels: Align bottom of metal panels and fasten with blind rivets, bolts, or self- <br />drilling or self-tapping screws. Flash and seal metal panels with weather closures where fasciae <br />meet soffits, along lower panel edges, and at perimeter of all openings. <br />E. Metal Roof Panel Installation Tolerances: Shim and align metal roof panels within installed <br />tolerance of 1/4 inch in 20 feet on slope and location lines and within 1/8-inch offset of adjoining <br />faces and of alignment of matching profiles. <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 roof panel assembly, including trim, <br />copings, ridge closures, seam covers, flashings, sealants, gaskets, fillers, closure strips, and <br />similar items. <br />2. Where dissimilar metals contact each other or corrosive substrates, protect against galvanic <br />action by painting contact surfaces with corrosion-resistant coating, by applying <br />rubberized-asphalt underlayment to each contact surface, or by other permanent separation <br />as recommended by manufacturer. <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. Install work with laps, joints, and seams that <br />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 with no joints allowed within 24 inches of corner <br />or intersection. Where lapped or bayonet-type expansion provisions cannot be used or <br />would not be sufficiently weather resistant and waterproof, form expansion joints of <br />intermeshing hooked flanges, not less than 1 inch deep, filled with mastic sealant <br />(concealed within joints). <br />C. Gutters: Join sections with riveted-and-soldered or lapped-and-sealed joints. Attach gutters to <br />eave with gutter hangers spaced as required for gutter size, but not more than 36 inches o.c. using <br />manufacturer's standard fasteners. Provide end closures and seal watertight with sealant. Provide <br />for thermal expansion. <br />D. Downspouts: Join sections with 1-1/2-inch telescoping joints. Provide fasteners designed to hold <br />downspouts securely 1 inch away from walls; locate fasteners at top and bottom and at <br />approximately 60 inches o.c. in between. <br />1. Provide elbows at base of downspouts to direct water away from building. <br />2. Tie downspouts to underground drainage system indicated.