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GAF HydroStop 40-in W x 336-ft L Polyester Roof Fabric

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  • 100% Polyester reinforcement for penetrations

  • Easily conforms around penetrations and improves strength while maintaining flexibility

  • Helps waterproof most potential leak points such as drains, AC curbs, laps, seams, fasteners, parapets, transitions, expansion joints and skylights

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