For contractors who prefer the reliability of traditional materials, the G.A.P. #15 ASTM D 4869 Roofing Felt from A1A Wholesale Supply delivers professional-grade performance. This organic felt is thoroughly saturated with high-quality asphalt, creating a water-resistant layer that protects the roof deck from moisture infiltration during and after the construction process.

As a critical component of a standard shingle roof system, this underlayment acts as a “cushion” between the roof deck and the shingles, helping to bridge small imperfections in the wood and providing an extra layer of fire and weather resistance. It is specifically optimized for standard residential slopes and is a cost-effective solution for large-scale projects and new construction.

Product Details

• Manufacturer: G.A.P. Roofing, Inc.

• Material: Asphalt-saturated organic felt.

• Classification: ASTM D 4869 Type 1.

• Roll Dimensions: 36″ wide.

• Coverage: 432 sq. ft. (4.32 squares) per roll.

• Weight: Approximately 34 lbs per roll.

• Logistics: 30 rolls per pallet / 44 pallets per truckload.

Features & Benefits

• Proven Moisture Protection: Saturated with asphalt to provide a dependable water-repellent barrier over the roof deck.

• Enhanced Shingle Performance: Recommended for use under 20- and 25-year asphalt shingles to meet standard warranty and building code requirements.

• Uniform Saturation: Manufactured for a consistent finish that resists “beading” and ensures even coverage.

• Traditional Handling: The familiar weight and texture that roofing crews have relied on for decades, providing a slip-resistant surface during installation.

• Code Compliant: Meets ASTM D 4869 Type 1 standards, ensuring it satisfies the requirements for residential underlayment in most jurisdictions.

Applications

• Standard Residential Roofing: The go-to underlayment for 3-tab and architectural shingle installations.

• Secondary Water Barrier: Provides essential protection against wind-driven rain that may get past the primary shingles.

• New Construction & Re-roofing: Suitable for all sloped roof decks where a traditional organic felt is specified.

• Slope Requirements: Designed for use on roof slopes where water can shed effectively toward the eaves.

Technical Specifications & Logistics