A metal deck roof accommodates a duct penetration sealed with stainless steel flashing installed by the general contractor. Two 1-1/2 inch by 3/8 inch closed-cell neoprene self-adhesive gaskets are secured at the top with stainless steel truss head screws per the manufacturer specifications.
METAL DECK ROOFING STAINLESS STEEL FLASHING BY GC (2) 1-1/2" x 3/8" CLOSE CELL NEOPRENE SELF ADHESIVE GASKET (12") SS TRUSS HEAD SCREW (PER MANUFACTURER)
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