Products / Owens Corning ProArmor Synthetic Roof Underlayment

ProArmor is Owens Corning's synthetic roof underlayment with Fusion Back Coating Technology, used beneath asphalt or metal roofing as a water-repelling secondary barrier. It withstands UV exposure for up to 90 days and ships in 42 in. by 286 ft. rolls providing 929 sq ft of coverage with a 3 in. overlap. Its data sheet also notes ASTM E108/UL 790 Class A fire resistance with the underlayment tested as part of a roof assembly.