GAF Roof Underlayment

GAF FeltBuster Synthetic Roofing Felt 48 in x 250 ft, 1000 sq ft

Coverage area1000sq ft
Underlayment typeSynthetic
Unrolled length250ft
Application methodNail/Staple

Pickup on Wed, Aug 06 from Miami, FL

Customer Choice

GAF WeatherWatch Mineral-Surfaced Rubberized Asphalt Roof Underlayment 36 in x 66.7 ft, 200 sq ft

Coverage area200sq ft
Underlayment typeRubberized asphalt
Unrolled length66.7ft
Application methodPeel & Stick

Pickup on Wed, Aug 06 from Miami, FL

GAF StormGuard Film-Surfaced Leak Barrier Rubberized Asphalt Roof Underlayment 36 in x 66.7 ft, 200 sq ft

Coverage area200sq ft
Underlayment typeRubberized asphalt
Unrolled length66.7ft
Application methodPeel & Stick

Pickup on Wed, Aug 06 from Miami, FL

GAF VersaShield Fire-Resistant Roof Deck Protection 42 in x 100 ft, 350 sq ft

Coverage area350sq ft
Underlayment typeSynthetic
Unrolled length100ft
Application methodNail/Staple

Pickup on Wed, Aug 06 from Miami, FL

Overview
Articles

What makes GAF synthetic underlayment the top choice for roof protection?

GAF stands as North America's largest roofing and waterproofing manufacturer, with over 135 years of proven industry leadership and more than 30 strategic manufacturing facilities across the United States. Headquartered in Parsippany, New Jersey, GAF's nationwide manufacturing network ensures premium GAF synthetic underlayment products arrive in peak condition exactly where and when they're needed. This extensive manufacturing footprint translates into competitive GAF underlayment pricing while maintaining the uncompromising quality standards that protect more American homes than any other roofing manufacturer. GAF's strategic acquisition of FT Synthetics, a premium British Columbia-based synthetic underlayment manufacturer, further strengthens their commitment to delivering industry-leading roof deck protection solutions. When you choose GAF roof underlayment, you're investing in a legacy of innovation, reliability, and the manufacturing excellence that comes from America's most trusted roofing protection specialist.

Why do contractors and homeowners trust GAF synthetic underlayment?

🏭 Industry Leadership: More homes and businesses in the U.S. are protected by GAF products than any other manufacturer.

🏆 Proven Durability: FeltBuster synthetic underlayment has been chosen by Bob Vila as the best overall underlayment of 2023.

🛡️ Warranty Protection: Up to Lifetime limited warranty coverage when installed with GAF Lifetime Shingles and qualifying accessories.

💪 Superior Performance: Deck-Armor provides at least 600% greater tear strength than standard #30 asphalt felt.

What GAF synthetic roof underlayment options are available for your project?

Product Series	Key Features	Applications	Specifications	Unique Advantages
FeltBuster® Synthetic	1000 sq ft coverage	Residential roofs	Non-asphaltic polypropylene construction	Lays flatter than traditional felt, earned Good Housekeeping Seal
Deck-Armor™ Premium	48" wide rolls, 43 lbs per roll	Residential/Commercial	UV resistant up to 180 days	Breathable technology reduces trapped moisture
VersaShield® Fire-Resistant	42" x 100 ft, 350 sq ft coverage	All roof types	ASTM D226 and D4869 certified	Upgrades most roofs to UL Class A fire rating
StormGuard® Film-Surfaced	200 sq ft rolls, 250°F compound	Ice dam protection	Self-sealing leak barrier	Blue surface stays cooler during installation

How does GAF roof underlayment compare to other brands?

Feature	GAF FeltBuster	Competitor A	Competitor B
Coverage	1000 sq ft	1000 sq ft	900 sq ft
Material	Non-asphaltic polypropylene	Polypropylene blend	Polyethylene
Warranty	Lifetime with GAF system	25-30 years	20 years
Price/Performance	⭐⭐⭐⭐⭐	⭐⭐⭐	⭐⭐⭐
Award Recognition	Bob Vila's #1 choice 2023	Industry standard	Basic certification
Key Strength	Good Housekeeping Seal certified	Standard protection	Economy option

What makes GAF synthetic underlayment technically superior?

Component	GAF Specification	Performance Benefit
Base Material	UV-stabilized polypropylene construction	Resists degradation, won't disintegrate like conventional felt
Surface Treatment	Slip-resistant walking surface	Enhanced walkability even on steep pitches
Tear Strength	600% greater than standard #30 felt	Up to 12 times stronger than traditional #15 felt
Weather Resistance	180-day UV exposure rating	Resists extreme heat, heavy rain, high winds
Quality Standards	ASTM D226 and D4869 certified	Trusted choice among roofing professionals

What do professionals and homeowners say about GAF synthetic underlayment?

"FeltBuster synthetic underlayment has been chosen by Bob Vila as the best overall underlayment of 2023 and our number 1 choice for roof replacement customers at WeatherSeal Roofing, as it offers the best combination of performance and price."

WeatherSeal Roofing, New Jersey

🏅 Industry Certification: GAF underlayment products have earned the prestigious Good Housekeeping Seal, demonstrating their commitment to quality and consumer protection. VersaShield meets key industry standards including ASTM D226 and D4869, ensuring reliability and superior protection.

"We've been installing GAF FeltBuster for three years now, and the difference in performance is remarkable. It lays flatter, handles better in wind, and our customers love the lifetime warranty coverage when we use the complete GAF system."

Mike Thompson, Certified Roofing Contractor, Texas

Frequently Asked Questions

Where are GAF synthetic underlayment products manufactured?

GAF operates 30 manufacturing facilities strategically located across the United States, with headquarters in Parsippany, New Jersey. All GAF synthetic underlayment products are manufactured domestically using advanced production techniques.

What warranty coverage does GAF provide on their underlayment?

GAF offers up to Lifetime limited warranty coverage when their underlayment is installed with GAF Lifetime Shingles and at least three qualifying GAF accessories. This comprehensive system warranty provides unmatched protection for homeowners.

Are GAF products suitable for extreme weather conditions?

Yes, GAF synthetic underlayment passes ASTM standards and resists harsh environmental conditions, including extreme heat, heavy rain, and high winds. StormGuard specifically protects against ice dams and wind-driven rain.

How does GAF synthetic underlayment compare to traditional felt?

Unlike conventional felts that can disintegrate over time, GAF's non-asphaltic polypropylene construction provides long-lasting performance with additional protection from wind-driven rain and UV degradation.

What certifications do GAF underlayment products have?

GAF underlayment products have earned the Good Housekeeping Seal and meet ASTM D226 and D4869 industry standards. They can also be used to comply with certain FORTIFIED Roof™ requirements.

Is bulk purchasing available for contractors?

Yes, GAF offers competitive bulk pricing through their extensive network of distributors. Products are distributed by national retailers including ABC Supply, The Home Depot, and Lowe's. Contact your local GAF distributor for volume pricing on GAF synthetic underlayment projects.

Ready to experience North America's #1 synthetic roof underlayment protection?

Discover GAF synthetic underlayment solutions with industry-leading warranties and Bob Vila's top-rated performance for uncompromising roof protection.

Shop GAF Synthetic Underlayment