Copolymer roof underlayment resists UV damage and tears.
Roofliner, a premium roof underlayment for sloped roofs (greater than or equal to 2:12), new construction, and re-roofing applications, provides high UV resistance with up to 6 months of UV exposure per ASTM G154.
The highly tear-resistant product, which is made with copolymer, carries a Class A fire rating per ASTM E108 and is more resistant to mold growth than roofing felt. One 10-square roll replaces about five rolls of 30-pound felt.
This underlayment is also available in a 4-square roll to more closely match the amount of material needed for a job.
