Fiberglass sound insulation thickness is 1” (25.4 mm), 2-1/2” (64 mm), and 3-1/2” (89 mm) for C-T or C-H studs of 2-1/2” (64 mm), 4” (102 mm), and 6” (152 mm) respectively. Finished both sides with 5/8” (15.9 mm) ToughRock Fireguard or 5/8” (15.9 mm) DensArmor Plus Fireguard board installed horizontally or vertically. Edges and ends offset 24” (610 mm) o.c.

Hourly Rating: 2-hour
STC Rating: 45-49 STC
Fire Test Reference: UL V473, ULC W4813, cUL V473, GA WP 70592
Sound Test Reference: RAL TL09-359
Approved for Assembly:
DensArmor Plus® Fireguard C® Products
DensArmor Plus® Fireguard® Products
DensElement™ Barrier Sheathing
DensGlass® Fireguard® Sheathing
DensGlass® Shaftliner Panel
DensShield® Fireguard® Tile Backer
ToughRock® Fireguard C® Products
ToughRock® Fireguard X™ Mold-Guard™ Products
ToughRock® Fireguard X™ Products
ToughRock® Lite-Weight Fire-Rated Products