Modernize your “dry-in” process with G.A.P. Synthetic Guard Shield, distributed nationwide by A1A Wholesale Supply. While traditional felt can wrinkle, tear, and absorb moisture, this advanced synthetic underlayment is completely waterproof and dimensionally stable. At only 20 lbs per 1,000 sq. ft. roll, it is significantly lighter than #15 or #30 felt, allowing for faster installation with much less physical strain on your crew.
The grey non-woven top surface is specifically designed for enhanced traction, providing a safer environment for roofers on various pitches. With a Class A fire rating and high-tensile woven scrim, Synthetic Guard Shield doesn’t just meet industry standards—it exceeds them, providing a rugged, reliable shield that won’t blow off or degrade under the sun’s harsh rays.
Product Details
- Manufacturer: G.A.P. Roofing, Inc.
- Material: Woven polypropylene scrim with a slip-resistant non-woven top layer.
- Roll Dimensions: 48″ wide x 250′ long (1,000 sq. ft. per roll).
- Weight: Approximately 20 lbs per roll.
- Thickness: 6 mil (ASTM D1777).
- UV Exposure: Maximum 90 days.
- Certifications:
- Class A Fire Rating (ASTM E-108).
- Passes ASTM D-226 (Type I & II).
- Passes ASTM D-4869 (Type I, II, III & IV).
Features & Benefits
- Advanced Slip Resistance: The non-woven top surface provides exceptional foot traction, increasing safety for installers on sloped decks.
- High-Strength Tear Resistance: With a trapezoidal tear strength of 30 lbs (MD), it is far more resistant to high winds and fastener pull-through than organic felt.
- Lightweight Efficiency: One 20 lb roll covers 10 squares—equivalent to the coverage of five rolls of #15 felt at a fraction of the weight.
- 90-Day UV Stability: Offers the flexibility to leave the deck exposed to the elements for up to three months without degradation.
- Moisture Proof: Will not absorb water, rot, or buckle, ensuring a smooth, flat surface for shingle application.
Applications
- Standard Residential Roofing: Specifically designed as a secondary water barrier under asphaltic shingle systems.
- New Construction & Re-roofing: Suitable for any mechanically attached application over roof sheathing.
- Steep Slope Protection: Excellent for high-pitch roofs where slip resistance is a critical safety requirement.
Technical Performance Reference
| Property | Test Method | Value |
| Strip Tensile | ASTM D-1970 | MD 75 lb / CD 40 lb |
| Trapezoidal Tear | ASTM 4533 | MD 30 lb / CD 25 lb |
| Pliability | ASTM D-226 | Pass |
| UV Weathering | AC 188 | Pass (90 Days) |
| Fire Rating | ASTM E-108 | Class A |
