A continuous twenty-gauge minimum three-inch deep leg deflection track connects to a fluted steel deck and concrete floor or roof perpendicular or diagonal to the flutes at twelve inches on center maximum. Gypsum board and studs remain unattached to the deflection track in the specified zone. A continuous two-inch wide by twenty-gauge metal strap provides top attachment for the gypsum board. Mineral wool insulation and sealant fill the head of wall gap.
NON-RATED OR SMOKE RESISTANT FLUTED STEEL DECK/CONCRETE FLOOR OR ROOF PERPENDICULAR OR DIAGONAL TO FLUTES CONT 2" WIDE X 20 GA MTL STRAP FOR TOP ATTACHMENT OF GYP BD CONT 20 GA MIN 3" DEEP LEG DEFLECTION TRACK ATTACH TO DECK AT 12" OC MAX DO NOT ATTACH GYP BD OR STUDS TO DEFLECTION TRACK IN THIS AREA SEALANT 3/4" MINERAL WOOL INSULATION 3/4" . 3/4" 1"
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