Products / FlexBase Plus 80

80 mil base sheet with a fiberglass and polyester reinforcement in an SBS-modified high penetration index asphalt, used as the interply waterproofing and reinforcement layer of a modified or built-up roof and as the initial underlayment of Garland HPR systems, including cold-applied Weatherking and Green-Lock systems. Supplied in 1 m by 34 ft. 8 in. rolls covering 100 sq. ft. The finished membrane meets or exceeds ASTM D 6162 Type III.