A pipe passes through a concrete roof deck with its size specified per plan. A metal flashing cone surrounds the pipe at the roof surface and is secured with a riser clamp, while roofing materials are installed by others. A storm collar fits tightly around the pipe above the flashing, with all seams sealed with mastic typically.
PIPE, SEE PLAN FOR SIZE. STORM COLLAR METAL FLASHING ROOF SURFACE ROOFING BY OTHERS CONCRETE ROOF DECK RISER CLAMP SEAL SEAMS W/ MASTIC, TYP.
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