Grace Vycor Select Rubberized Asphalt Roof Underlayment 36 in x 65 ft, 195 sq ft

Grace Vycor Select Rubberized Asphalt Roof Underlayment is a professional-grade self-adhered underlayment engineered to provide superior protection beneath shingles, shakes, tile, or metal roofing. Each 36 in × 65 ft roll covers 195 sq ft and is designed with a high-strength rubberized asphalt surface that resists tears during installation and provides excellent fastener sealability. This membrane lays flat and features a slip-resistant walking surface to enhance safety and ease of use during installation.

Because the underlayment is made from durable rubberized asphalt, it does not absorb water or wrinkle like traditional felt. The material resists mold growth, ensuring a dry and stable roof deck. Vycor Select meets key code-based standards for nail sealability equivalent to much thicker, heavier membranes, offering excellent wind resistance and durability even during heavy roof traffic and harsh weather conditions.

Vycor Select is lightweight, with a roll weight of approximately 32 lbs, and can be easily handled by roofing crews. Its advanced backside slip-resistant coating and up to 90 days of UV exposure resistance allow for faster, wrinkle-free installation and longer-lasting protection for the roof deck until the primary roofing material is applied.

• Roll size: 36 in W × 65 ft L (195 sq ft coverage)
• Rubberized asphalt material – Self-adhered, water-resistant construction
• Slip-resistant surface for enhanced installation safety
• Nail sealability equivalent to much thicker membranes
• UV resistance for up to 90 days
• Ideal under shingles, shakes, tiles, metal, and synthetic shingles
• Weight: Approx. 32 lbs per roll

Fast, contractor-friendly installation

Vycor Select is engineered for easy handling and quick installation. The high-quality, lightweight membrane features a non-slip surface for added safety on the job site, allowing roofing professionals to work faster and with fewer complications. The rolls are designed to lay flat, improving ease of installation and minimizing wrinkles. Vycor Select can be applied at temperatures of 40°F (5 °C) or higher and is fully self-adhered—no additional adhesives required—making it compatible with a wide variety of roofing systems for both residential and commercial applications.

Durability in extreme conditions

Vycor Select passes ASTM D3767 and ASTM D412 standards and is resistant to harsh environmental conditions, including extreme heat, heavy rain, ice dams, and high winds. Its 25-mil thickness provides both strength and flexibility, and it remains easy to handle in cold temperatures where traditional felt may become stiff and brittle.

Certified for performance

Vycor Select is a trusted choice among roofing professionals, meeting key industry standards such as AC 48, AC 188, ICC ESR-5149, and UL 790/ASTM E108 Class A fire classification. It provides reliable, self-sealing protection under shingles, shakes, tiles, and metal roofing for up to 90 days of exposure before the primary roof covering is installed.

Dimensions

Roll: 36 in × 65 ft

Weight

Approx. 32 lbs per roll