Floor/Ceiling Wood-Framed

1/2” (12.7 mm) ToughRock® Fireguard C® or 1/2” (12.7 mm) DensArmor Plus® Fireguard C® gypsum board applied perpendicular to 2” x 10” wood joists 16” (406 mm) o.c. with 5d nails 1-5/8” (41 mm) long, 0.099” (2.5 mm) shank, 1/4” (6 mm) heads, 6” (152 mm) o.c. Wood joists supporting 1” (25 mm) nominal T&G wood sub and 1” (25 mm) nominal finish floor, or 19/32” (15.1 mm) plywood finished floor with long edges T&G and 15/32” (11.9 mm) interior plywood with exterior glue subfloor perpendicular to joists with joints staggered. Nails placed 3/4” (19 mm) from board end joints and 1/2” (12.7 mm) from board end joints.

Hourly Rating: 1-hour
STC Rating: 35-39 STC and 32 IIC & 66 w/C&P
Fire Test Reference: UL L503, ULC M502, cUL L503, GA FC 5410
Sound Test Reference: NGC 4024 & IIC - NGC 5032 & IIC w/ C&P - NGC 5032
Approved for Assembly:
ToughRock® Fireguard C® Products
DensArmor Plus® Fireguard C® Products