The assembly features a roofing membrane adhered over a one-half-inch barrier board and rigid insulation supported by a structural deck. A membrane flashing is secured at the base of the wall or curb using one-quarter-inch Simpson SDS stainless steel screws with Sarnadisc spaced at sixteen inches on center, and hot-air welded to the roofing membrane. A twenty-two gauge galvanized steel counterflashing is fastened using number ten by one-and-one-half-inch stainless steel hex washer head screws at sixteen inches on center. A reglet is fastened eight inches minimum on center with compatible fasteners, incorporating a multi-purpose tape and a two-step sealant application behind the top of the Sarnafil flashing, at the top of the Sarnareglet, and to the clean acceptable surface. A twenty gauge by six-inch galvanized steel flat strap is installed behind the finish at the metal stud wall.
1/4" SIMPSON SDS SS SCREW (ESR 2236) MEMBRANE FLASHING TO ROOFING MEMBRANE, ADHERED RIGID INSULATION AS OCCURS PER ROOFING SYSTEM TYPE ASSEMBLY HOT-AIR WELD STRUCTURAL DECK MULTI-PURPOSE TAPE NOTES: #15 HEAVY DUTY SARNAFASTER XP @12" OC W/ SARNADISC (ESR 1157) C) SEALANT SHALL BE APPLIED TO B) AND AT TOP OF SARNAREGLET. A) BEHIND TOP OF SARNAFIL FLASHING. 1) SEALANT IS A TWO STEP APPLICATION: ACCEPTABLE SUBSTRATE OR COMPATIBLE SEALANT 8-INCHES O.C. WITH REGLET FASTENED 8 INCHES MIN. #10x1-1/2" SS HEX WASHER HEAD SCREW @16" O.C. (ICC ESR 1408) CLEAN ACCEPTABLE SURFACE. COMPATIBLE SEALANT TO CLEAN SURFACE 1/2" BARRIER BOARD 22 GA. GALV. STL. . COUNTERFLASHING SEALANT #10x1-1/2" SS HEX WASHER HEAD SCREW @ 16" O.C. (ICC ESR 1408) 20 GA 6" GALV. STL FLAT STRAP AT METAL STUD WALLS (BEHIND FINISH) MEMBRANE FLASHING TO HOT-AIR WELD 1/4" SIMPSON SDS SS SCREW (ESR 2236) @ 16"OC W/ SARNADISC (ESR 1157) ACCEPTABLE SUBSTRATE SECUREMENT FASTENED AT BASE OF WALL OR CURB - ALTERNATIVE BASE FASTENING
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