Floor/Ceiling Steel-Framed

1/2” (12.7 mm) ToughRock Fireguard C or 1/2” (12.7 mm) DensArmor Plus Fireguard C gypsum board applied perpendicular to rigid furring channels 24” (610 mm) o.c. with 1” (25 mm) Type S drywall screws 12” (305 mm) o.c. Gypsum board end joints located midway between continuous channels and attached to additional pieces of channel 54” (1372 mm) long with screws at 12” (305 mm) o.c. Furring channels 24” (610 mm) o.c. attached with 18-gauge (43 mils) wire tied 48” (1219 mm) o.c. to open web steel joists 24” (610 mm) o.c. supporting 9/16” (14 mm) deep 28-gauge (15 mils) corrugated steel and 2-1/2” (64 mm) concrete slab. Furring channels may be attached to 1-1/2” (38 mm) cold rolled channels 48” (1219 mm) o.c. suspended from joists by 8-gauge wire hangers not more than 48” (1219 mm) o.c. (Two hours restrained and unrestrained.)

Hourly Rating: 2-hour
STC Rating: 50-54 STC
Fire Test Reference: ULC 1511, GA FC 2030
Sound Test Reference: NGC 4075
Approved for Assembly:
ToughRock® Fireguard C® Products
DensArmor Plus® Fireguard C® Products