Architectural construction details related to site drainage and roof scuppers. A drain pipe through curb detail features a drain transition manifold beneath finish paving, protected by a quarter-inch galvanized steel angle and a drainage slope of one-eighth inch per foot minimum, with reinforcement around the curb penetration. The overflow scupper section details a primed twenty-four gauge galvanized iron scupper flashing set in roof cement over a concrete tilt-up wall, integrating built-up roofing over plywood sheathing and a downspout system secured with sixteen gauge straps. Additional notes specify placement requirements, approved urethane sealants, and transition manifold dimensions for various drain sizes.
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