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WeatherLock™ G Granulated Self-Sealing Waterproofing Barrier

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Extra protection against weather and storms. Use WeatherLock™ G Granulated Self-Sealing Waterproofing Barrier on the entire roof deck as a secondary water barrier under asphalt shingles, wood shakes and quarry slate roof assemblies. This provides additional security against leaks caused by storms, wind-driven rain and shingle blow-offs. WeatherLock™ G also has a taped selvedge edge to offer improved seal between courses and peace of mind that your roof has an extra layer of protection.

Area 2 sq. roll – 184 sq. ft. (56.1 m2)
Length 2 sq. roll – 66.7 ft. (20.3 m)
Width 3 ft. (.91 m)

Applicable Standards

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

The performance of any roof depends on an entire system of Roofing Essentials accessory products and Owens Corning Shingles working and performing together. Below find our shingle recommendations for this product:

* 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.

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