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A New Holistic Solution to Waterproofing All Six Sides. Every Detail. One Proven Source.

From below-grade solutions to air and vapor barriers, low-slope roofing, and plaza decks, CertainTeed and GCP products have protected every side of commercial structures for decades. Now, with an integrated portfolio, architects, contractors, and building owners can enjoy holistic continuous protection without concern for finger-pointing at critical tie-in joints. Peace of mind, a manifestation of proven performance, best-in-class support, and commitment to a sustainable future.