A continuous twenty-two gauge minimum three-inch deep leg deflection track attaches to the overhead concrete floor or roof slab at twelve inches on center maximum. The gypsum board and studs remain unattached to the deflection track within the specified clearance zone. A continuous two-inch wide by twenty-two gauge metal strap secures the gypsum board at eight inches on center maximum. The gap between the slab and the top of the wall fills with mineral wool insulation. Spray-applied firestop material seals each side with a minimum one-half inch overlap at the gypsum board and deck.
1" 1" _ 1 1/2" FILL GAP BETWEEN SLAB AND TOP OF WALL WITH MINERAL WOOL INSULATION SPRAY APPLIED FIRESTOP MATERIAL EACH SIDE - MIN 1/2" OVERLAP AT GYP BD AND DECK CONT 2" WIDE X 22 GA MTL STRAP - ATTACH GYP BD TO STRAP AT 8" OC MAX DO NOT ATTACH GYP BD OR STUDS TO DEFLECTION TRACK IN THIS AREA CONT 22 GA MIN 3" DEEP LEG DEFLECTION TRACK ATTACH TO DECK AT 12" OC MAX ONE HOUR FIRE RESISTANT AND ONE HOUR CONCRETE FLOOR OR ROOF SLAB CONT 22 GA MIN 3" DEEP LEG DEFLECTION TRACK ATTACH TO DECK AT 12" OC MAX
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