UDL25 Roof Underlayment Roll, 250 ft L, 48 in W, Synthetic, Gray

#30 felt replacement used for steep slope roofing designed for use under all primary roofing types including Asphalt Shingles, Synthetic Shingles, Metal roofing and Cedar Shakes. 11X lighter and 14X stronger than #30 felt, Class A Fire ASTM E108, meets and exceeds ASTM D226 Types I & II and D4689 Types II & IV, Class 4 hail rating, ICC ES Approved: synthetic construction inert to mold growth, Patented "Sure-Foot" slip resistant nodular walking surface, contributes to "LEED" points, certified minimum of 20% reclaimed content (100% recyclable), all temperature performance -40 to 240 deg F, 6 month UV exposure, cool light gray surface doesn't expand or contract, dual logo custom printing available, Roll size of 10 sq or 93 sq-m.