Protect your roofing projects from the industry’s most common leak points with G.A.P. WaterGuard™ Rain & Ice Protection, distributed nationwide by A1A Wholesale Supply. This professional-grade flashing membrane is designed for high-performance sealing in “critical zones” such as valleys, roof-to-wall transitions, skylights, and vents.

The SBS-modified asphalt remains flexible in cold temperatures, while the sand-surfaced top provides a slip-resistant walking surface for installers. Its aggressive adhesive bottom ensures a permanent bond to the substrate, and the integrated split-release film allows for a faster, more controlled application. In cold-weather climates—especially where January temperatures average $25^circtext{F}$ or less—this membrane is a building code requirement to safeguard against the structural damage caused by ice damming.

Product Details

• Manufacturer: G.A.P. Roofing, Inc.

• Composition: Woven fiberglass mat with SBS polymer-modified asphalt.

• Surface: Sand release agent for traction; aggressive adhesive bottom.

• Thickness: 45 mils (Professional Grade).

• Roll Dimensions: 36″ wide x 67′ long.

• Coverage: 195 sq. ft. (Approx. 2 Squares).

• Logistics: 33 rolls per pallet / 858 rolls per truckload.

Features & Benefits

• Superior Leak Protection: Specifically engineered to prevent water ingress from wind-blown rain and the “back-up” effect of ice dams.

• Aggressive Adhesion: The self-adhesive backing creates a permanent, watertight bond to the roof deck without the need for additional fasteners in the field.

• SBS Modified Asphalt: The polymer-modified blend ensures the membrane remains pliable and crack-resistant across a wide range of temperatures.

• Split-Release Film: Features a factory-applied backing that is easily removed in sections, simplifying installation in tight areas like valleys and around chimneys.

• Code Compliant: Meets rigorous standards for ice and water protection in high-wind and heavy-snow regions.

• Low-Slope Versatility: Ideal for low-slope applications ($2/12$ to $4/12$ pitch) that require complete roof coverage for total moisture defense.

Applications

• Critical Flashing: Essential for valleys, roof-to-wall transitions, curbs, and skylights.

• Eave Protection: Prevents damage from ice dams in northern climates where melting snow refreezes at the gutters.

• Penetration Sealing: Provides a secondary seal around plumbing vents, electrical masts, and HVAC curbs.

• Full Deck Coverage: Recommended for low-slope shingle installations that demand 100% waterproof protection.

Technical Specifications & Logistics