FeltBuster® High-Traction Synthetic Roofing Felt


Quality roofing underlayment is critical for helping to prevent wind-driven rain from infiltrating under the roof’s shingles and potentially damaging the home’s structure and interior. Traditional asphalt felt underlayments can tear easily and absorb moisture, leading to wrinkling that “telegraphs” through the shingles. Competitive priced with typical asphalt felts (pricing varies by market), GAF’s FeltBuster® High-Traction Synthetic Roofing Felt:

  • Includes a specially designed surface for enhanced walkability and a cooler working surface (vs. typical black felts)
  • Resists tearing on the roof
  • Avoids wrinkling that can “telegraph” through the shingles, detracting from the finished look of the roof
  • Will not absorb moisture, become brittle, or leach oils

Homeowner's Quality Choice

  • Durable Construction… Non-asphaltic, polypropylene construction for long-lasting performance (unlike conventional felts that can disintegrate over time)

  • A Better-Looking Roof… Lies flatter than typical felts and avoids “telegraphing” of wrinkles, which can detract from the look of your new roof

  • Peace of Mind… Part of the GAF Lifetime Roofing System and covered by up to a Lifetime ltd. warranty when installed on Lifetime Shingle roofs*

Professional's Quality Choice

  • Enhanced Walkability… Special spunbound surface helps provide increased traction vs. traditional asphalt felts

  • Competitively Priced… Per square with typical asphalt felts (pricing varies by market)

  • Tough Synthetic Construction… Resists tearing underfoot and in high winds

  • Easier to Work With… Super-lightweight, 10 square, 48" (1.23 m) wide roll (vs. typical 36" [914 mm] wide felt rolls)

  • Cooler to Work On… Medium-gray surface is up to 30 degrees cooler than typical black asphalt felts**

Nominal Specifications

  • For use with asphalt shingles
  • 10 squares/roll – 1,000 sq. ft. (92.9 m2)(excludes laps)
  • 48" x 250' (1.23 m x 76.2 m)
  • Resists UV degradation for up to 90 days***
  • Approx. 23 lbs. (10.4 kg)/roll
  • Meets or exceeds the physical requirements of ASTM D226 and D4869
  • CSA A123.3
  • Florida Building Code Approved
  • Listed with Texas Department of Insurance as an acceptable alternate roof underlayment
  • Miami-Dade County Approved

Note: Always install FeltBuster® High-Traction Synthetic Roofing Felt using plastic cap nails or plastic cap staples. Do NOT use nails or staples without caps.

* See GAF Shingle & Accessory Ltd. Warranty for complete coverage and restrictions. The word “Lifetime” means as long as the original individual owner(s) of a single-family detached residence [or the second owner(s) in certain circumstances] owns the property where the shingles and accessories are installed. For owners/structures not meeting the above criteria, Lifetime coverage is not applicable. Lifetime ltd. warranty on accessories requires the use of at least three qualifying GAF accessories and the use of Lifetime Shingles.

* * Based on GAF testing with underlayments installed on plywood deck at 90°F (32.2°C) ambient temperature and left exposed to direct sunlight.

* * * NOTE: 90-day UV resistance refers to standardized testing conducted by GAF to ensure the product will not physically degrade when exposed to UV. It is NOT related to withstanding water, snow, or wind. While FeltBuster® High-Traction Synthetic Roofing Felt is water resistant, it is NOT WATERPROOF. DO NOT USE FeltBuster® High-Traction Synthetic Roofing Felt as a temporary roof to protect property or possessions.


All documents are U.S. English unless otherwise noted

Get Automatic Lifetime Protection On Your FeltBuster High-Traction Synthetic Roofing Felt and Your Entire GAF Roofing System!

  • A Lifetime ltd. warranty... on your shingles and all qualifying GAF accessories! (See Details)
  • Non-prorated coverage for the first 10 years (See Details)
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