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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 roofing nails (3/8-inch head), and is an ideal underlayment for asphalt, shingles, metal, tile, slate, and a variety of sloped roofing materials. Two skid resistant surfaces include the proprietary Fiber Claw® top and a deck grabbing rubberized bottom. These surfaces along with unmatched strength and durability make Feltex an ideal steep slope underlayment choice. 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. BROADCAST ®   technology offers economical multiple image custom print advertising in largest full color format and turns a building into a billboard with unlimited advertising options. 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.

  • Safest: Skid-resistant polymer coating underneath and proprietary Fiber ClawTM walking surface offers dynamic steep slope traction.
  • Hail Rated: FelTex has a Class 4 hail rating (UL 2218) and may help reduce insurance costs.
  • Strongest: Feltex is designed for high traffic and high winds with the most strength and durability available.
  • Lighter: FelTex is lighter than #15 or #30 felt and easier to handle during all stages of installation.
  • Simpler to Apply: FelTex installs quickly and easily. It is lighter, stronger, and covers more area than traditional underlayments.
  • More Coverage: FelTex offers five times more coverage per roll than Type 30 felt.
  • Advertise: Bigger and bolder with BROADCAST® Custom Print – the easiest way to get leads or earn paid advertising revenue during your project. With Broadcast Custom Print your individual logo, phone number, web address and any other advertisements can be featured on the same roll, with individual images more than 2 feet tall and 10 feet wide. BROADCAST® Custom Print offers the largest, most vivid job site advertising in the industry.
  • Gray Color: Provides a comfortable working surface in all temperatures and an excellent background for your extra large (up to 30” tall/unlimited width) full color custom printed logo, phone number, web site or other advertisement.
  • Won’t Buckle, Warp or Crack: Superior lay-flat properties and water resistance keeps FelTex from wraping, 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. See published installation guidlines for details.
  • 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: Limited Lifetime Warranty.

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, faster, and easier to install. 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 Limited Lifetime 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 around fasteners, in high-traffic areas, or during high winds. Since a single roll of FelTex covers five times the area as 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.