CertainTeed WinterGuard Sand Long Asphalt-Saturated Roof Underlayment 36 in x 65 ft, 195 sq ft

CertainTeed WinterGuard Sand Long Asphalt-Saturated Roof Underlayment is a professional-grade underlayment engineered to provide superior protection beneath shingles, shakes, slate, or tile roofing. Each 36 in × 65 ft roll covers 195 sq ft and is designed with a high-strength, nonwoven surface that resists tears during installation. This construction is designed to lay flat and provides a slip-resistant walking surface to enhance safety and ease of use during installation.

Because the underlayment is made from durable asphalt-saturated materials, it does not absorb water or wrinkle like traditional felt. The material resists mold growth, ensuring a dry and stable roof deck. WinterGuard Sand Long is up to 3 times stronger than traditional #15 felt, offering excellent wind resistance and durability even during heavy roof traffic and harsh weather conditions.

WinterGuard Sand Long is lightweight, with a nominal weight of 68 lbs per roll, and can be easily handled by roofing crews. Its advanced backside non-slip coating and up to 180 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)
• Asphalt-saturated material – Water-resistant construction
• Slip-resistant surface for enhanced installation safety
• Up to 3 times stronger than #15 felt
• UV resistance for up to 180 days
• Ideal under shingles, shakes, tiles, and slate roofing
• Weight: Approx. 68 lbs per roll

Fast, contractor-friendly installation

WinterGuard Sand Long is engineered for easy handling and quick installation. The high-quality, lightweight material 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 the ease of installation and minimizing wrinkles. WinterGuard Sand Long can be cold-nailed or stapled and is compatible with a wide variety of roofing systems, making it a versatile choice for both residential and commercial applications.

Durability in extreme conditions

WinterGuard Sand Long passes ASTM standards and is resistant to harsh environmental conditions, including extreme heat, heavy rain, and high winds. Its strength and flexibility make it suitable for use in a variety of climates, including cold temperatures where traditional felt may become stiff and difficult to handle.

Certified for performance

WinterGuard Sand Long is a trusted choice among roofing professionals, meeting key industry standards such as ASTM D1970, ensuring reliability and superior protection under shingles, shakes, tiles, and slate roofing.

Dimensions

Roll: 36 in × 65 ft

Weight

68 lbs per roll