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roof waterproofing membrane / flexible / self-adhesive / synthetic



  • Applications:

    for roofs

  • Other characteristics...:

    flexible, self-adhesive

  • Material:

    synthetic, bituminous


WeatherLock® Flex Flexible Self-Sealing Ice & Water Barrier provides excellent roof deck protection against water infiltration resulting from the freeze/thaw cycle, wind-driven rains and normal water flow around eaves, rakes, valleys, vents, chimneys and skylights.

Engineered for asphalt shingles, wood shakes and quarry slate roof assemblies, WeatherLock® Flex also offers:

High performance Flexible and pliable poly surface and modified asphalt combine to adhere around irregular shapes, inside corners and at sharp angles, even in cold-weather applications to 40ºF
Added protection Acts as a waterproof barrier in the most vulnerable sections of the roof, such as valleys and other roof penetrations, to create a second line of defense. For optimal protection, apply to entire roof deck on 2:12 to 4:12 pitch roofs***
Aggressive self-adhesive Exceeds adhesion performance requirements to help prevent water migration
Slip-resistant surface For excellent traction and safe installation
Seals tight around nails Modified asphalt construction for a tight seal around nails to prevent water penetration
Contractor convenience UV exposure up to 30 days without edge curling while continuing to provide high-performance lap seal. Split backer sheet for easy application****
WeatherLock® Flex is an essential part of the Owens Corning™ Total Protection Roofing System™§.

Surface: High-strength cross-laminated poly surface
Adhesive Styrene: Modified asphalt
Removable Backing: Removable Backing; Peel-away release liner**
Application: Engineered for asphalt shingles, wood shakes and quarry slate roof assemblies