GCP invented fully-adhered roofing underlayments more than 35 years ago. Grace Ice and Water Shield fully-adhered smooth surface roofing underlayment provides best in class roof leak protection against wind driven rain and ice dams. Grace Ice and Water Shield roofing underlayment, a registered trademark of GCP Applied Technologies, is the name that contractors trust the most to protect their reputations.
- Strong adhesion to the roof deck: helps ensure watertight seal, protecting roofs from harsh weather conditions
- High quality seal around roofing nails: delivers best in class roof leak protection; providing peace of mind against costly call backs
- Forms superior laps: helps ensure a watertight installation with no special treatment of the laps
- Ripcord split release on demand: makes it easier to waterproof detail areas such as valleys, chimneys, roof to wall transitions
- Longest performance history: with over 35 years of performance history, Grace Ice and Water Shield roofing underlayment offers the highest confidence for the life of the roof
- Protects roofs from wind driven rain and ice dams
- Versatile – suitable for use under most roof coverings, including asphalt shingles mechanically attached tiles and most standing seam metal roofs
- 36 in. x 36 ft. size provides 108 sq. ft. of coverage














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