J Quintero Roofing - When should I use 30lb felt? Most standard pitched roofs only need a 15lb. felt for proper underlayment. 30lb. is used for many specialty applications such as: low
15 Felt Asphalt Saturated Underlayment
36in 15-lb. ROOFING FELT PAPER ROLL 400 SQUARE FEET COVERAGE | Close Lumber - Corning Lumber
Asphalt Roofing Felt, #15, 36 In. x 144 Ft. Roll | True Value