ToughRock 5/8-in 4-ft x 8-ft Fireguard Regular Drywall Panel 133

ToughRock Sheathing is a moisture-resistant substrate for use in new building construction or renovation work that is covered by a cladding such as vinyl or fiber cement siding, masonry veneer, or wire lath stucco. ToughRock Fireguard X Sheathing is UL and ULC classified for use in a variety of fire-rated assemblies.