Terra Seal is a self-adhering clay or concrete tile roof underlayment that withstands elevated rooftop temperatures and has exceptional nail pull-through resistance. It comprises high-grade polyester fabric laminated to high-temperature, self-sealing asphalt adhesive protected by a release liner removed during installation. Terra Seal can be used as the initial underlayment for clay or concrete tile roof applications and can also be used to line valleys, eaves, ridges, rakes, and hips.
