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WeatherLock™ G ProGrade Granulated Self-Sealing Ice & Water Barrier

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WeatherLock™ G ProGrade Granulated Self-Sealing Ice & Water Barrier allows for proper water flow, helping to prevent ice dams and ultimately protecting interiors as well. It's an essential part of a Total Protection Roofing System™*.

Thickness 47 mils
Width 3 ft. (.91 m)
Model Name Area Length

WeatherLock™ G ProGrade (Granulated) 2 SQ Roll (36 in x 66.7 ft) 200 sq. ft. (19.4 m2) 66.7 ft. (21.3 m)

Applicable Standards

  • ASTM D1970
  • ASTM E108/UL 790 (Class A Fire Resistance)^

* See actual warranty for complete details, limitations and requirements.

^ Underlayment is tested as part of a rood assembly that includes wood decking, underlayment and shingles.