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National Lumber has done the research
and recommends this roofing underlayment for the following reasons:
Enhanced performance
Scientifically engineered to be more lighweight than 30-lb roofing felt, DuPont™ RoofLiner with Elvaloy® is easier to install, helping to reduce labor and installation time. It also offers superior tear and UV resistance, with improved water hold-out and better mold resistance than 30-lb roofing felt.

1 roll vs. 5 rolls
With 10 squares in every roll, DuPont™ RoofLiner with Elvaloy® allows for maximum roof coverage and efficient installation, making it easer to install than 30-lb roofing felt. As a result, there are fewer overlaps, seams and fasteners, which helps reduce both labor and waste.
| the difference between materials and results.
National Lumber knows that there's a big difference between roofing a building vs. protecting a building with roofing materials that will stand the test of time. We provide the best materials, expert advice and the best tools for the job, so you will get the best results.
We are constantly researching products to provide you with the best value.
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Recommended by National Lumber because it provides "protection for the roof and your reputation ALL IN ONE STEP." |
20-Year Builder Warranty
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. That's value.
Come in to any National Lumber location, call your sales rep, or speak to a PRO Force Specialist about DuPont™ RoofLiner with Elvaloy®. You'll see that we work harder every day to serve you well.
Remodeling Contractors—being a member of PRO Force offers you valuable benefits. Click here for a summary of Membership Benefits.
Click the links at right for more products and services available through the National Lumber in-house divisions and other members of the National Lumber Family of Companies.
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