In 1978, the introduction of GRACE ICE & WATER SHIELD underlayment advanced roofing technology as the first self-adhering roofing underlayment. Today, the original self-adhered underlayment continues to deliver superior waterproofing performance on more than 2 million roofs, sealing itself at overlaps, onto the roof deck and around fasteners used to attach shingles, creating a full-bonded adhesion. These features help prevent water from leaking into a home. Backed by CertainTeed’s SureStart warranty, customers can further protect their homes and roofing products during the vital early years following installation and for up to 50 years with SureStart Plus. For more information, visit certainteed.com/residential-roofing/products/grace-ice-water-shield-roofing-underlayment/.