Products / Terra Seal

Self-adhering clay and concrete tile roof underlayment of polyester fabric laminated to a high-temperature, self-sealing rubberized asphalt adhesive with a release liner, used as the initial underlayment under tile and to line valleys, eaves, ridges, rakes and hips. The data sheet lists rolls 3 ft. 3 in. wide by 67 ft. long covering 200 sq. ft., a nominal thickness of 75 mils, 0.02 perms vapor permeance, and states it must be covered within 180 days. Elongation, tensile, tear, adhesion, nail sealability and slip resistance are reported per ASTM D 1970 test methods.