One layer 1″ x 24″ (25.4 mm) ToughRock® Shaftliner or DensGlass® Shaftliner panel inserted between 2-1/2″ floor and ceiling J runners with H section of 2-1/2″ (64 mm), C-T, or C-H studs between panels. Opposite side one layer 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 studs with 1″ Type S screws 8″ o.c. (NLB) Sound tested with 1-1/2″ glass fiber insulation friction fit in stud cavity and with the 5/8″ gypsum panel applied using screws spaced 12″ o.c.

Hourly Rating: 1-hour
STC Rating: 40-44 STC
Fire Test Reference: UL V473,cUL V473,GA WP 6851
Sound Test Reference: RAL TL09-357, 12-7-09
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
ToughRock® Shaftliner