G.A.P. 38 In. x 138 Ft. Non-Rated 15 lb Roof Felt, Asphalt Saturated

GAP Unperforated Roofing Felt Underlayment provides an extra layer of protection between your shingles and your roof deck. 36 In. wide organic mat. Excellent asphalt saturation for effective waterproofing. Accurate lay lines for simple, consistent shingle application. Slip-resistant, even in warm climates. Non-Rated. 20 mil thick. Coverage Economical roofing underlayment.