DuPont™ Elvaloy®, from the family of DuPont polymers used as the basis of the world’s best roofing membranes, is the brand leader with decades of proven performance in billions of square feet of roofing. Trusted for its excellent durability, DuPont™ Elvaloy® has been incorporated into a new premium roofing underlayment that provides superior durability and protection against leaks compared to roofing felt.

Backed by the science of one of the most trusted names in building innovation, DuPont™ RoofLiner with Elvaloy® delivers excellent performance that helps prevent leaks and reduce call backs. It’s trusted protection that can give both you— and homeowners—greater peace of mind. Plus, DuPont™ RoofLiner with Elvaloy® is backed by a 20-Year Builder Warranty—so you know the homes you build will continue to protect a homeowner’s investment, and your reputation, for years to come.

• Features & Benefits
• 20-Year Limited Warranty
• Technical Information
• Where to Buy