Products / APOC Tuff-Grip Synthetic Roofing Underlayment (15 / 30)

APOC Tuff-Grip is a UV-stabilized polypropylene synthetic roofing underlayment that replaces #15 and #30 organic felt under asphalt shingles, residential metal and cedar shake on slopes of 4:12 or more, and resists UV exposure for up to 90 days. It is offered in two weights with separate data sheets, Tuff-Grip 15 (stock code AP-6400-15) and Tuff-Grip 30 (AP-6400-30), both in 48-inch by 250-foot rolls covering 10 squares. The data sheets list CCRR-0604, Florida Building Code approval FL47536, certification to ASTM D8257 and ICC-ES AC188, and performance meeting or exceeding ASTM D4869 Types I to IV and ASTM D226 Types I and II.