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
- 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.
Original: $94.32
-70%$94.32
$28.30Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
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.
