ToughRock and DensGlass Shaftliner is fiberglass mat gypsum shaftliner for stairwells, shaft wall, duct work, and area separation walls. ToughRock Shaftliner panels have a gypsum core encased in moisture-resistant green paper facings. DensGlass is backed on both faces with enhanced fiberglass mat.
FIRE RATINGS
| Test Standard |
Rating |
Design Number |
| ASTM E119, CAN/ULC S101 |
2-hr |
GP/GBA 120-01 |
| ASTM E119, CAN/ULC S101 |
2-hr |
GP/GBA 120-02 |
| ASTM E119, CAN/ULC S101 |
2-hr |
GP/GBA 120-03 |
