Products / WeatherBond SureMB Base Ply

SBS-modified asphalt base sheets on a fiberglass mat used as the base ply under TPO AC Fleece or KEE HP FRS Fleece cap sheets in WeatherBond multiple- ply systems, and also as an air barrier, vapor barrier or temporary roof for up to 60 days. The line includes SureMB 90 and SureMB 120 Base Ply for adhered or fastened installation and the smooth-surfaced, torch-grade SureMB 90TG and 120TG Base, all in 39 3/8 inch wide rolls (49 feet for the 90 grades, 33 feet for the 120TG). The SureMB 90 and 120 bulletins say they meet ASTM D6163 Type I, Grade S, are FM Approved and are listed under Florida Building Code FL-8077, with manufacture in Fort Worth, TX.