These Securock® UltraLight Glass-Mat Sheathing Panels are intended for use under exterior claddings where conventional gypsum sheathing products have traditionally been used, such as brick veneer, properly detailed Exterior Insulation Finish Systems (EIFS), clapboard siding, panel siding and conventional siding.
- Feature a coated fiberglass facer mat to maximize coverage of fluid-applied air/water barrier systems
- Treated gypsum core, combined with fiberglass face and back, offers exceptional water resistance
- Underwriters Laboratories Inc. (UL) Classification as to fire resistance, surface burning characteristics and noncombustibility
- Comply with ASTM C1177, Standard Specification for Glass Mat Gypsum Substrate for Use as Sheathing, for 5/8 in. (15.9 mm) Type X and glass-mat water-resistant gypsum substrate
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