A plumbing vent stack extends a minimum of twelve inches above the roof structure. Wood blocking is installed as required beneath the roof assembly. The roofing material and roof membrane connect to the penetration and turn down into the top of the stack.
VENT STACK 12" MIN ROOF STRUCTURE BLOCKING AS REQ'D. COORDINATE WITH ROOFING CONTRACTOR ROOFING MATERIAL CONNECT WITH ROOF MEMBRANE AND TURN DOWN INTO TOP OF STACK
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