A field fabricated pipe penetration flashing detail shows a vertical pipe passing through a roof assembly with rigid insulation. A reinforced membrane and water stop are installed at the base of the penetration per the manufacturer recommendations. Non-reinforced flashing extends up the pipe and is secured with a stainless steel clamping ring. Fasteners and fastening plates anchor the insulation and membrane assembly with specified dimensional clearances.
1 1/2" TO 2" 12" MAX. 1" MIN. (APPX.) 1/2" MIN. 1 1/2" MIN. INSTALL PER MANUFACTURER REINFORCED MEMBRANE WATER STOP STAINLESS STEEL CLAMPING RING INSTALL PER MANUFACTURER FASTENER AND FASTENING PLATE INSTALL PER MANUFACTURER NON-REINFORCED FLASHING REINF. MEMBRANE SEALANT RIGID INSULATION C2
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