GCP’s Grace roofing underlayment products are used to protect buildings in extreme climates all around the world, and can meet even the most demanding design requirements. Grace underlayments seal aggressively to roof decks to create a watertight bond and prevent water migration, tightly bonding to roof fasteners to prevent leaks and covering vulnerable overlaps for superior water-shedding. Grace Ice & Water Shield®, the original self-adhered underlayment, has been installed on more than two million homes to date. Grace Ultra™ features a butyl adhesive that delivers unmatched thermal stability, and can be used under copper, Cor-Ten® steel, and zinc roof coverings. Grace Ice & Water Shield® HT is formulated to be more thermally stable, and is ideal for use under metal roofing or in high-temperature roofing assemblies. Grace Select® is a lighter, simpler alternative to granular surfaced underlayments.
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