Grace Vycor Ice & Water Shield HT Rubberized Asphalt Roof Underlayment 36 in x 75 ft, 225 sq ft

Grace Vycor Ice & Water Shield HT Rubberized Asphalt Roof Underlayment is a professional-grade, self-adhering underlayment engineered to provide superior ice- and water-protection beneath shingles, shakes, tile, or metal roofing. Each 36 in × 75 ft roll covers 225 sq ft and is designed with a nonwoven, slip-resistant surface that helps prevent tears and provides footing safety during installation. This rubberized asphalt construction lays flat and adheres instantly to the roof deck, creating a continuous waterproof barrier.

Because the underlayment is made from durable rubberized asphalt, it does not absorb water or wrinkle like traditional felt. The material resists mold growth and remains flexible in cold temperatures. Vycor Ice & Water Shield HT offers up to 4 times the tensile strength of #15 felt, delivering excellent wind and foot-traffic durability even in harsh weather conditions.

Vycor Ice & Water Shield HT is lightweight—approx. 61.4 lbs per roll—and can be handled easily by roofing crews. Its advanced, high-temperature-stable adhesive backing and up to 60 days of UV exposure resistance allow for faster, wrinkle-free installation and extended deck protection until the primary roofing is applied.

• Roll size: 36 in W × 75 ft L (225 sq ft coverage)
• Rubberized asphalt material – Self-adhering, waterproof construction
• Slip-resistant surface for enhanced installation safety
• Up to 4 times stronger than #15 felt
• UV resistance for up to 60 days
• Ideal under shingles, shakes, tiles, and metal roofing
• Manufacturer part number: GVI75
• Weight: Approx. 61.4 lbs per roll

Fast, contractor-friendly installation

Vycor Ice & Water Shield HT is engineered for easy handling and quick application. The self-adhesive backing enables one-step peel-and-stick installation—no nails or staples required—while the slip-resistant surface provides added safety on steep slopes. Rolls lay flat immediately, improving installation speed and minimizing wrinkles. Vycor Ice & Water Shield HT is compatible with a wide variety of roofing systems, making it a versatile choice for both residential and commercial projects.

Durability in extreme conditions

Vycor Ice & Water Shield HT passes ASTM D1970 standards and stands up to harsh environmental conditions, including extreme heat, freeze-thaw cycles, heavy rain, and high winds. Its superior tensile strength and flexibility ensure reliable performance in any climate.

Certified for performance

Vycor Ice & Water Shield HT is a trusted choice among roofing professionals, meeting key industry standards for rubberized asphalt underlayments and providing a proven waterproof barrier beneath shingles, shakes, tiles, and metal panels.

Dimensions

Roll: 36 in × 75 ft

Weight

Approx. 61.4 lbs per roll