Meets the requirements of ASTM C 1177
Very Severe Hail: Achieves FM 'VSH' approval with adhered 60 or 80 mil (smooth back) JM TPO membrane and standard JM TPO membrane adhesives when 4'x4' panels are adhered in low rise foam adhesive ribbons, 12" O.C. min.
Enhanced Face Mat: Coated fiberglass facer ideal for fully adhered systems provides a broader compatibility and higher performance with roofing adhesives.
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.