Products / DerbiBase SA

DerbiBase SA is a fiberglass reinforced SBS modified bitumen self-adhered base sheet with mineral surfacing for bonding to heat welded inter-ply or cap sheets and a split-film release. The data sheet lists a thickness of 87 mil (2.2 mm) and a roll 49.2 ft long and 39.4 in wide for 147.6 square feet of net coverage, and requires SA Primer on all existing roof surfaces. The product page lists ASTM D6163 Type I, Grade S.