Vycor® Ice & Water Shield® is a premier self-adhered roofing underlayment known for its unmatched quality. Comprising an aggressive rubberized asphalt adhesive and a layer of slip-resistant coated high-density cross-laminated polyethylene film, this membrane guarantees robust waterproofing. It features a foldless release paper for easy application, allowing the rubberized asphalt to form a secure bond with the roof deck. The RIPCORD® embedded in the adhesive provides a "split release on demand" feature, making it convenient to apply. This versatile underlayment is suitable for sloped roofs and various roofing materials, including asphalt shingles, slate, tile, cedar, and standing seam metal. Vycor Ice & Water Shield is offered in rolls that are 36 inches (914mm) wide and come in lengths of 75 ft (22.9 m), 66.6 ft (20.2 m), and 36 ft (11.0 m). Vycor Ice & Water Shield offers several benefits, including sealing around fasteners to prevent leaks due to water backup from ice dams or...See More wind-driven rain. It exhibits superior adhesion to the deck, ensuring a firm bond without the need for heat or special adhesives. The membrane forms watertight laps with ease, and it safeguards under various standard sloped roof coverings. With a proven track record spanning over 45 years, this underlayment is a trusted name in the industry. It features a slip-resistant embossed surface for enhanced traction and safety during installation. For optimal use, install the Vycor Ice & Water Shield roofing membrane on a clean, dry structural deck, following proper surface preparation guidelines. The membrane is resistant to cracking, drying out, or rotting, offering long-lasting protection. It is backed by local technical support personnel to ensure smooth application. In areas prone to ice dams, Vycor Ice & Water Shield should be used alongside roof designs that minimize ice dam formation. Proper insulation and ventilation are essential in cold climates to reduce the size of ice dams and prevent interior condensation. The product's coverage depends on several variables like climate, slope, overhang, insulation, valleys, exposure, and local building codes. Vycor Ice & Water Shield should be applied in fair weather conditions with recommended temperature ranges for both the membrane and roof covering materials. The installation process involves cutting the membrane into sections, peeling the release liner, and ensuring proper overlaps for water shedding. It is important to follow industry best practices and consider various precautions and limitations, such as avoiding exposure to sunlight for extended periods. Vycor Ice & Water Shield meets code compliance standards and is recognized for its impressive performance properties, including color, membrane thickness, tensile strength, elongation, low-temperature flexibility, adhesion to plywood, permeance, and material weight. It is a reliable choice for roofing underlayment, with a track record of durability and protection. See Less