CertainTeed’s GlasRoc Sheathing is a high-performance, non-combustible, gypsum-based sheathing that offers exceptional fire, moisture and mold resistance for exterior wall and roof systems. Made from a combination of gypsum core and fiberglass mat facers, the product is engineered to withstand the elements and provide long-lasting performance.
One of the standout features of GlasRoc Sheathing is its superior fire resistance. The sheathing is non-combustible and meets ASTM E136 / CAN/ULC-S114 standards for fire resistance, making it an ideal choice for buildings that require extra protection against fire hazards. The product also resists the growth of mold and mildew, providing an added layer of protection against moisture damage.