GlasRoc® Sheathing is the industry standard for high-quality Type X gypsum-based exterior sheathing.
Available in both 1/2" (12.7 mm)* and 5/8" (15.9 mm) thickness, GlasRoc Sheathing is made with cementitious glass mat facers that are embedded into a water-resistant gypsum core. This provides a surface that is ideal for long-term protection against weather exposure.
Strong, lightweight, and flexible, GlasRoc Sheathing allows for bending to curved surfaces. It is also cuts like regular gypsum board, but with minimal skin irritation due to embedded glass mat.
Long-term protection (12 months) to weather exposure
Water-resistant surface does not inhibit water vapor permeance
Mold- and moisture-resistant
Compatible with most exterior wall systems and applications
Excellent fire-resistance properties, and numerous fire-rated assemblies
Conformity to design and code requirements
12-month limited warranty against exposure
5-year limited product performance warranty
12-year substrate limited warranty in architecturally specified EIF Systems
Thicknesses: 1/2"*, 5/8" (12.7 mm*, 15.9 mm)
Width: 4' (1220 mm) standard
Length: 8' (2440 mm) standard (custom lengths available)
Edges: Square
Packaging: Per piece
GlasRoc Sheathing panels have a Flame Spread rating of 0 and Smoke Development rating of 0, in accordance with ASTM E84 (CAN/ULC-S102)
Non-combustible when tested inaccordance with ASTM E136 (CAN/ULCS114).
Fire resistance tests are conducted in accordance with ASTM E119 (ANSI/UL 263 and CAN/ULC-S101) and no warranty is made other than conformance to the standard under which the assembly was tested.