Tapered insulation forms a four-foot by four-foot sump around the primary roof drain, sloping one inch per twelve inches toward the drain inlet. The surrounding roof insulation tapers with variable slopes as indicated on the roof plan. The primary roof drain is positioned adjacent to the wall assembly.
4' - 0" SEE ROOF PLAN VARIES 4' - 0" TAPERED INSULATION SUMP AT PRIMARY DRAIN SLOPE 1" PER 12" TOWARD DRAIN PRIMARY DRAIN SEE MECHANICAL SLOPE
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