Products / All Weather Nail Base

A fiberglass-mat SBS (Styrene-Butadiene-Styrene) modified bitumen base sheet in U.S. Ply's All Weather line, for modified bitumen roof systems or hybrid configurations with conventional roofing plies. It is mechanically attached to the roof deck. The data sheet lists a 60 mil thickness, 82 lb rolls of 39-3/8 in x 64 ft 5 in (212 sq ft gross), film top and sand bottom surfacing, and ASTM D4601 Type I/II. It states the product is intended for mild to warm climates.