This assembly features a pre-molded pipe flashing boot installed over a roof penetration in roof assembly R01. The base of the flashing is secured to the roof deck with fasteners and plates spaced at a maximum of 12 inches on center. A minimum 1 1/2-inch wide hot-air weld is applied to the flashing base, extending beyond the fastening plates to ensure a watertight seal. The top of the pipe boot is sealed with water cut-off mastic and secured against the pipe using a stainless steel clamping ring. A rain hood is positioned above the clamping ring to deflect water away from the penetration.
FULLY ADHERED PEEL AND STICK FLASHING AROUND TOP OF FLASHING BOOT. LAP 3" ONTO FLASHING BOOT. APPLY EPDM PRIMER ONTO ALL SURFACES COMING INTO CONTACT WITH EPDM. PREFORMED SQUARE SPLIT PIPE BOOT FLASHING MANUFACTURER'S FASTENER AND PLATE, MINIMUM (4) AROUND PIPE EDGE SEALANT ALL AROUND BASE CLEAN TOP OF PIPE BOOT WITH MEMBRANE CLEANER PRIOR TO INSTALLATION OF EPDM FLASHING WELD FLASHING BASE TO FIELD MEMBRANE MINIMUM 1 1/2" CONTINUOUS MIN. 8" 1 1/2" MINIMUM WELD SQUARE PIPE ROOF ASSEMBLY R01 PIPE WATER CUT-OFF MASTIC STAINLESS STEEL CLAMPING RING PRE-MOLDED PIPE FLASHING FASTENER AND PLATE AT 12" ON CENTER MAX HOT AIR WELD, 1 1/2" MINIMUM BEYOND FASTENING PLATES S.S. CLAMPING RING RAIN HOOD ROOF ASSEMBLY R01
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