One layer 1″ x 24″ (25.4 mm) ToughRock® Shaftliner or DensGlass® Shaftliner panel inserted between 2-1/2″ floor and ceiling runners of 2-1/2″ (64 mm), 4″ (102 mm) and 6″ (152 mm) C-T, C-H studs. One layer of 5/8″ (15.9 mm) ToughRock® Fireguard X® Products or 5/8″ (15.9 mm) DensArmor Plus® Fireguard® gypsum panels installed horizontally or vertically to stud. Edges and ends offset 24″ (610 mm) o.c. 1-1/2″ Fiberglass sound insulation friction fit in stud space.

Hourly Rating: 1-hour
STC Rating: 40-44 STC
Fire Test Reference: UL V473,cUL V473,GA WP 68512
Sound Test Reference: RAL TL09-357
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 (Meets fire rating but not evaluated in sound testing)