Primary and overflow roof drains are mounted in a cross-laminated timber panel roof with tapered roof insulation. Each drain body is supported by a sleeve and secured with four anchor bolts. An overflow dam is positioned two inches higher than the low point of the roof sump to manage excess water. Drainage piping extends downward from each drain body.
ROOF DRAIN (RD) SUPPORT SLEEVE LOW POINT OF ROOF SUMP (OVERFLOW DAM 2" HIGHER THAN THIS POINT) OVERFLOW ROOF DRAIN (ORD) 2" OVERFLOW DAM ANCHOR BOLTS TYP 4 EA DRAIN 1 ROOF SYSTEM 1 NOTE 5 3 CLT PANEL ROOF. SEE ARCHITECTURAL EXTEND DRAIN BODY TO ACCOMMODATE ROOF INSULATION. SEE ARCHITECTURAL FOR ROOF INSULATION DETAILS AND THICKNESS ROOF INSULATION 1 3
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