SKU: 33136358457

GAF FeltBuster Synthetic Roofing Felt Underlayment, 4 ft x 250 ft (10-Square Roll)

Sale price$95.34 Regular price$105.93
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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22

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Description

GAF FeltBuster Synthetic Roofing Felt Underlayment, 4 ft x 250 ft (10-Square Roll)GAF FeltBuster Synthetic Roofing Underlayment Upgrade from asphalt felt with this durable, non asphaltic polypropylene underlayment that helps protect roof decks from wind driven rain and moisture. The high traction, medium gray surface is cooler to work with and the super lightweight 10 square roll is easy to handle on the roof. Key Features: High Traction Surface: Special spunbond top layer offers excellent installer grip versus typical asphalt

GAF FeltBuster Synthetic Roofing Underlayment

Upgrade from asphalt felt with this durable, non-asphaltic polypropylene underlayment that helps protect roof decks from wind-driven rain and moisture. The high-traction, medium-gray surface is cooler to work with and the super-lightweight 10-square roll is easy to handle on the roof.


Key Features:

  • High-Traction Surface: Special spunbond top layer offers excellent installer grip versus typical asphalt felts
  • Tear-Resistant Durability: Tough synthetic construction resists tearing underfoot and in high winds
  • Long-Lasting Material: Non-asphaltic polypropylene won’t rot or degrade like conventional felt
  • Cooler, Easy Handling: Medium-gray color runs cooler; lightweight 10-square roll simplifies installation
  • Code Compliant: Approved to Florida Building Code, Miami-Dade, TDI; meets ASTM D226, ASTM D4869, CSA A123.3

Specifications Table:

Specification Details
Product Name FeltBuster Synthetic Roofing Felt
Brand GAF
Product Type Synthetic roof underlayment
Material Non-asphaltic polypropylene with spunbond surface
Roll Dimensions 4 ft x 250 ft
Coverage 10 squares (1,000 sq ft / 92.9 sq m)
Color Medium gray
Unit of Measure Roll (RL)
Weight 21 lb per roll
Packaging 10 SQ. Roll
Approvals/Standards Florida Building Code Approved; Miami-Dade County Approved; TDI Approved; ASTM D226; ASTM D4869; CSA A123.3
Warranty Eligibility Eligible for up to a Lifetime Limited Warranty when used on Lifetime Shingle roofs; eligible accessory in GAF residential enhanced warranties
Performance Notes Resists wind-driven rain; tear-resistant; avoids water absorption and wrinkling; cooler to work with than black felts

Frequently Asked Questions (FAQ):

Q: What are the roll dimensions and coverage?
A: Each roll measures 4 ft x 250 ft and covers 10 squares (1,000 sq ft).


Q: Is it suitable for residential shingle roofs?
A: Yes. It’s designed for use under shingles and is eligible for enhanced GAF residential warranties when paired with Lifetime Shingles.


Q: How does it compare to traditional asphalt felt?
A: It’s lighter, more tear-resistant, non-absorbing to help avoid wrinkling, and provides better traction for installers.


Q: What is the material?
A: Non-asphaltic polypropylene synthetic underlayment with a spunbond surface.


Q: Which approvals and standards does it meet?
A: Florida Building Code, Miami-Dade County, TDI; complies with ASTM D226, ASTM D4869, and CSA A123.3.


A Sleek, Reliable Foundation for Refined Rooflines

FeltBuster lays down a crisp, graphite-toned canvas that keeps a roofline looking poised from the very first layer. I love its high-traction, grid-marked surface—smart, orderly, and confidence-inspiring for a flawless shingle layout. Pair it with deep charcoal shingles and matte black accents for a modern silhouette that feels both architectural and warm. This is the quiet luxury your home deserves—beauty that begins beneath the surface.


Choose FeltBuster today to get cooler, safer installation and long-lasting roof deck protection on your next project.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 33136358457

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4.3 ★★★★★
Based on 29 reviews
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Nathalie M. Rosario Escobar
Charlottesville, US
★★★★★ 5
Very good
Color: 01-black, Size: Small
It looks so good on my bf, he really like it. The quality is so perfect.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 15, 2026
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Javian Campbell
Belleville, US
★★★★★ 5
Good quality
These fit so well material is very tick nice for winter they have all different colors and it’s so comfy it’s really good value for your money for that level of thickness
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Reviewed in the United States on September 30, 2025
R
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Ruby
Lowell, US
★★★★★ 5
Buy it
If you're looking for a comfortable thick and nice turtle neck this is the one. It's nice and form fitting nice weight to it to keep you warm. But not to thick that you cant just wear it on a regular sunny day if you wanted. The design pattern Is also very nice. Can dress it up or down. I bought the black and then immediately bought the rust orange color for my friend once he tried on mine he wanted one immediately so I gifted him one. He loves it. Definitely worth the buy. Excellent quality. I bought a Large 5"11 165lbs
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Reviewed in the United States on December 21, 2024
M
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Make it Do!
Natrona Heights, US
★★★★★ 5
What you see is what you get!
Color: 01-black, Size: Large
Fits great, fabric is amazing, turtle neck fits tight, and the quality is amazing!
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Reviewed in the United States on February 11, 2026
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SeanCeltiad
Charlottesville, US
★★★★★ 4
A true turtleneck that retains a snug high neck.
Color: White, Size: X-Large
I've found this brand to have gotten better over the years as far as offering the American market what it needs in terms of realistic sizing. I only wish they'd realize that there are a lot of us who are long in the back and arms where my only choice is to go a size up and sacrifice a slim fit for sleeves that are long enough plus a back that doesn't go up past my waist just because I reach up for something, that and I like to be warm. So these are such nice quality turtlenecks that it's hard to complain about but maybe the company will read this. The snug neck stays up is plus number one since that's why I'm buying a full neck. They come with very nice weaves in the fabric, good enough for casual or formal wear. Finally the warmth you seek is there but I've worn them in what most would think isn't the right temp for a turtleneck. Also they have them in white! Yes, a lot of others just don't for reasons I can't fathom, and the pic you're seeing is accurate, these will form to your shape without being ridiculously thin material. Several washes later and they are as fine a garment as when I first wore them. I've only found one other brand that compares to these but it's much more expensive, COOFANDY is affordable in these times of expensive everything. Warm but also a lightweight shirt, I've gotten them really dirty with actual dirt and it washes out so well you'd never know it. Don't let my taking off one star stop you, try one yourself and you'll be coming back for more.
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Reviewed in the United States on July 30, 2025

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