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FelTex®, our premium synthetic roof underlayment, is among the safest, strongest, and best-performing roof underlayments on the market. It balances strength and weight, provides dynamic steep-slope traction, and will not buckle, warp or crack. FelTex is rated for commercial and residential applications using plastic cap fasteners and roofing nails (3/8-inch head), and is an ideal underlayment for asphalt, shingles, metal, tile, slate, and a variety of sloped roofing materials. Skid-resistant surfaces and the proprietary Fiber Claw® textured surface make FelTex the best choice for steep slope applications. Whether you're working on a FelTex-protected roof, or living underneath one, you'll appreciate FelTex's quality.

FelTex revolutionizes the roofing industry with ground-breaking BROADCAST® custom printing. With BROADCAST technology, our roof underlayment can be printed in full color, at the largest size available, with alternating messages — and all at a low cost! BROADCAST custom printing turns a building into a billboard — a vivid, multi-colored, multi-messaging platform with unlimited advertising possibilities. Take a look at our gallery to see some of the creative ways roofers, builders, building owners, contractors, and developers are turning their roof underlayments into a powerful advertising and lead generation tool.

Secure under foot, reliable over head. FelTex.

  • BROADCAST® Custom Printing: Hands down the largest full-color print area in the industry.
  • Reliable: A skid-resistant polymer surface and a proprietary Fiber Claw® walking surface offers dynamic steep-slope traction.
  • Stronger: FelTex is stronger than Type 15 or 30 felt and resistant to tearing and stretching around fasteners in high traffic areas or during high winds.
  • Lighter: FelTex is lighter than Type 15 or 30 felt and easier to handle during all stages of installation.
  • Simpler to Apply: FelTex installs quickly and easily. Visit the Technical Library for complete installation guidelines.
  • More Coverage: FelTex offers five times more coverage per roll than Type 30 felt.
  • Will not buckle, warp, or crack: Superior lay-flat properties and water resistance keep FelTex from warping, wrinkling, and cracking in cold weather.
  • UV Exposure Rating: FelTex is treated to resist excessive degradation from normal UV exposure for up to six months. Visit the Technical Library for complete installation guidelines.
  • Meets Building Codes: FelTex is rated for residential and commercial projects.
  • Asphalt-Free: FelTex is 100% inorganic, and will not rot or mold.
  • Sustainable: FelTex is environmentally responsible, and may contribute to your LEED and NGBP ratings.
  • Warranty: A 50-year limited warranty applies to FelTex. Visit the Technical Library for details.

Why Choose FelTex?

FelTex is far stronger and far more durable than traditional roofing felt.

Due to its polymer fabric construction, FelTex is far stronger and far more durable than Type 15 and 30 felt. It’s also safer and easier to install. It’s stronger, faster, and a more durable alternative to asphalt-saturated felt papers. 100-percent synthetic construction resists water, and will neither rot nor support the growth of mold like organic felt products may. When left exposed, FelTex resists ultraviolet exposure for six months without swelling, warping or wrinkling. Felt cannot offer these performance advantages when installed or left exposed. FelTex has proprietary slip-resistant features; felt does not. FelTex fastens securely; felt tears and is vulnerable to "blow offs." One roll of FelTex will cover five times the area a single roll of felt will. We stand behind that promise with our 50-year limited warranty.

FelTex vs. Felt

FelTex outperforms other synthetic underlayments.

Feltex is more versatile, adaptable, and user-friendly than other synthetic underlayments. It can be installed with both plastic-cap fasteners and 3/8-inch dia. head roofing nails for quick installation. Its textured Fiber Claw surface gives FelTex the best-performing walking surface among synthetic underlayments. The rubberized polymer coating on the back side provides FelTex exceptional deck grip. And because it's available with the most comprehensive custom printing in the industry, it can be a powerful advertising and lead-generation tool.

FelTex vs. Other Synthetic Underlayments

FelTex is simple to install.

Homeowners rely on FelTex to protect their homes; roofers rely on it for roofer-friendly installation. Because of its unique and rugged construction, it’s strong and less likely to tear on fasteners, in high-traffic areas, or during high winds. Since a single roll of FelTex covers five times the area of a roll of Type 30 felt, crews can finish jobs more quickly — saving time and money. It also grips phenomenally well, and has a proprietary textured walking surface for dynamic steep-slope traction. The result? Performance you can count on. Lastly, FelTex can be left exposed for up to 180 days.

To learn how to transform your FelTex order into a multi-colored, multi-messaging space with endless revenue-generating possibilities, visit the custom printing page.

Visit the Technical Library for data, warranty, and installation guidelines.