Products / APOC #15 and #30 Felt Asphalt Saturated Roof Underlayment (42 / 22)

APOC felt is an asphalt-saturated organic felt roof underlayment offered in two weights with separate data sheets: APOC 42 #15 felt in 36-inch by 144-foot rolls covering approximately 432 square feet, and APOC 22 #30 felt in 36-inch by 72-foot rolls covering approximately 216 square feet. The data sheets list a minimum net saturated-felt mass of 11.5 and 13.0 pounds per 100 square feet respectively and describe the felt as vapor-permeable under the maker's Tru-Breathe name.