Roof drain and overflow drain assembly set within a tapered roof sump with lead flashing. The tapered roof sump features a one inch per foot slope starting six inches from the edge of the lead flashing. The drain elevation is set one inch below the sump perimeter.
0' - 6" 1' - 0" 2' - 0" SLOPE EDGE OF LEAD FLASHING BEGINNING OF 1"/FT. TAPPERED ROOF DRAIN SUMP SET DRAIN ELEV. 1" BELOW SUMP PERIMETER OVERFLOW DRAIN ASSEMBLY
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