DuPont™ RoofLiner with Elvaloy® is a lightweight, high-performance roofing underlayment scientifically engineered to help provide superior durability and protection against leaks compared to roofing felt. The product offers superior tear resistance, excellent water hold-out and six-month UV- resistance, also compared to roofing felt.
The product is engineered for use with all types of roofing materials, such as asphalt shingles, clay, concrete, fiber cement or metal tiles, slates, wood shakes, standing seam metal sheets and corrugated metal roofing. One roll replaces five rolls of 30-lb. roofing felt and is five times lighter.
DuPont™ RoofLiner with Elvaloy® is backed by a 20-Year Builder Warranty.