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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 roof and plaza deck systems, 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.