Meets the requirements of ASTM C 1177
Features and Components
Handleability: Coated fiberglass facer ideal for mechanically fastened systems improves handling and strength. Scores and snaps easily.
Fire Performance: FM Class 1 for fire barrier requirements and UL Class A unlimited slope with excellent surface burning characteristics. 5/8" thickness meets the requirements of Type X per ASTM C 1177.
Moisture and Mold Resistance: Enhanced mold resistant core and coated fiberglass facers provide mold and mildew resistance per ASTM-D 3273.