An access door is set within a five-eighths-inch Type X gypsum board ceiling supported by metal stud joists and twenty-gauge runner channels. Hanger wires and bracing wires spaced at twelve feet on center provide ceiling suspension and stability. All edges are caulked, and a twenty-gauge shadow mold matches the adjacent T-bar system with an edge bead finishing the drywall transition. Rated ceiling installations require a one-hour fire-rated access door.
ACCESS DOOR, PAINT TO MATCH CEILING 5/8" TYPE "X" GYP. BD. AT RATED CONDITION CAULK ALL EDGES GYP. BD. METAL STUD JOIST NOTE: 1. IN RATED CEILINGS PROVIDE A ONE- HOUR FIRE ACCESS DOOR 2. FOR ROUGH OPENING INFORMATION SEE 6" MAX. PROVIDE ONE PAIR BRACING WIRES PARALLEL TO TRANSITION @ 12'-0" O.C. HANGER WIRE 20 GA. J- RUNNER RUNNER CHANNEL 7/8" FURRING CHANNEL EDGE BEAD 20 GA. SHADOW MOLD MATCH T-BAR 2 3
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