SKU: 5939524023

GAF FeltBuster Synthetic Roof Underlayment, 48 in x 250 ft (1000 sq ft)

Sale price$84.89 Regular price$94.32
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Description

GAF FeltBuster Synthetic Roof Underlayment, 48 in x 250 ft (1000 sq ft)GAF FeltBuster Synthetic Roof Underlayment (48" x 250') GAF FeltBuster is a high traction synthetic roofing underlayment designed to protect decks beneath shingles. The durable polypropylene construction resists tearing and moisture while its medium gray surface stays cooler than traditional black felt for easier installation. Key Features: Enhanced Traction Surface: Special spunbond top layer improves walkability compared to typical asphalt felts

GAF FeltBuster Synthetic Roof Underlayment (48" x 250')

GAF FeltBuster is a high-traction synthetic roofing underlayment designed to protect decks beneath shingles. The durable polypropylene construction resists tearing and moisture while its medium-gray surface stays cooler than traditional black felt for easier installation.


Key Features:

  • Enhanced Traction Surface: Special spunbond top layer improves walkability compared to typical asphalt felts
  • Durable Synthetic Build: Non-asphaltic polypropylene resists tearing, moisture absorption, brittleness, and oil leaching
  • Cooler Working Surface: Medium-gray finish can be up to 30°F cooler than black felt for more comfortable installs
  • Lightweight, Wide Roll: 48-inch width and 10-square coverage per roll speeds application over large areas
  • Better Aesthetics: Lies flatter to reduce wrinkle telegraphing for a cleaner-looking roof

Specifications Table:

Specification Details
Series Name FeltBuster
Type Roof deck protection
Material Synthetic (Non-asphaltic polypropylene)
Application Method Nail
Underlayment Grade #30
Coverage Area 1000 sq ft
Length 250 ft
Width 48 in
Weight 23 lbs
Warranty Limited lifetime (when part of GAF Lifetime Roofing System)
For Use with Asphalt Shingles Yes
For Use with Metal Roofing No
For Use with Wood Shakes No
For Use with Flat Roofing Yes
Prop 65 Warning (CA) No
UNSPSC 30151500

Frequently Asked Questions (FAQ):

Q: Is FeltBuster waterproof?
A: No—it's water-resistant and intended as a secondary water-shedding layer beneath the primary roof covering.


Q: What roofing materials is it compatible with?
A: Designed for use under asphalt shingles; not intended for metal or wood shakes. Listed as suitable for flat roofing in specs.


Q: How is it installed?
A: Install with nails following printed fastening guides on the sheet; use as underlayment, not as a temporary roof.


Q: What is the coverage per roll?
A: Each 48 in x 250 ft roll covers 1,000 sq ft (10 squares).


Q: Does it come with a warranty?
A: Eligible for a Limited Lifetime Warranty when part of a GAF Lifetime Shingles roof, per GAF warranty terms.


A Sleek, High-Performance Base for Beautiful Rooflines

FeltBuster’s cool gray surface lays impeccably flat, creating a refined foundation that elevates any shingle pattern. I love the wide-format roll—it streamlines coverage and keeps seams clean for a polished silhouette. Pair it with dimensional shingles and crisp metal accents to highlight roof geometry. It’s a discreet essential that ensures a resilient, luxe finish from the very first layer.


Upgrade your roof’s first line of defense with GAF FeltBuster for durable, cooler, and easier installation performance.

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: 5939524023

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4.6 ★★★★★
Based on 25 reviews
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Alyssa Romano
Chelsea, US
★★★★★ 5
King size great pillows!!!!!
Color: White, Size: King(2Pack)
I ordered this 2-pack of king-size pillows to upgrade my bed, and I’m so glad I did. The size is perfect for a king bed and instantly made everything look more full and put together. When they arrived, the pillows fluffed up nicely and felt soft yet supportive. They’re not too flat and not overly firm, which makes them really comfortable whether you’re sleeping on your back or side. I’ve been using these for a bit now and they’ve held their shape well through the night. They provide good neck and head support without feeling stiff, and they don’t go flat by morning. What I like most is how versatile they are — great for sleeping but also perfect for propping up in bed while reading or watching TV. For a two-pack, the quality is honestly impressive. Overall, these are a great value and exactly what I was looking for. If you want comfortable, well-filled king-size pillows that look and feel great, I would definitely recommend this set.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 10, 2026
B
Verified Purchase
Brandi
Charlottesville, US
★★★★★ 3
Thickness
Color: White, Size: King(2Pack)
Pillows are a great price good quality just a little flat
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Reviewed in the United States on October 14, 2025
C
Verified Purchase
Camille26
Louisville, US
★★★★★ 5
Comfy pillows! Excellent deal
Color: White, Size: Queen(2Pack)
I received these pillows shrink-wrapped flat as a pancake. But I've received other things this way including whole king-sized mattresses and they always puff up to normal size once you pop them out of the plastic wrap. These pillows puffed up pretty quickly. I did shake them and pound on them a little off and on for about an hour before slipping some pillow cases onto them. Their not super fluffy but not too flat. I like that their soft yet have a little support. My husband really likes his too. We both get a good sleep on these. I'm a side sleeper so it's really comfy for me to have some "squishiness" like these have. As far as quality goes, these are nicely stitched and the fabric feels soft. The pillows are rather lightweight and I won't know how durable these are until we've used them for a while.
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Reviewed in the United States on November 24, 2024
B
Verified Purchase
Bleed Green Mafia
Whiting, US
★★★★★ 5
Impressive Set of 4 King Pillows – Comfort Meets Quality
Color: Black, Size: King (Pack of 4), Color: Black, Size: King (Pack of 4)
Impressive Set of 4 King Pillows – Comfort Meets Quality I recently upgraded to this 4-pack of king-size pillows (20 x 36 inches), and they’ve been a fantastic addition to the bedroom. Certified by Oeko-Tex, they’re suitable for all sleep positions—whether you’re a side sleeper like me or prefer your back or stomach. The feel strikes a perfect balance between soft and supportive. The microfiber filling cushions your head and neck without going flat, so I wake up without the usual stiffness. They bounce back quickly after use and keep their shape well—just give them a quick fluff when needed, and they’re good to go. They do need about a day to fully expand once unboxed, but that’s expected. The design also deserves a mention. The subtle stripe pattern gives the pillows a clean, upscale look—definitely not your average basic pillow. They’d make a solid gift, too. Cleaning is easy: toss them in the washer on a gentle cycle with cold water, then either air dry or tumble on low. No hassle. If you’re looking for a dependable set of king-size pillows that feel great and look sharp, these are worth it. I also took a picture of it next to a standard pillow so that you could see the difference in the size from King to standard. Hope that helps, overall definitely buy these pillows if you are hesitant there is no need to be, these pillows are perfect in my opinion
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Reviewed in the United States on August 2, 2025
C
Verified Purchase
Cathlene Miner
Boise, US
★★★★★ 5
High End feel.
Color: White, Size: Queen (Pack of 4)
I bought this because I needed to replace old pillows. After using it for a few day I liked that they stayed fluffy and cool all night. My guests loved them too! The quality feels high end. I would recommend it for anyone that likes high end feel without the the high end price.
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Reviewed in the United States on May 21, 2026

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