Helps Create a Water-Proof Barrier

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

WeatherLock® Flex is an essential part of the Owens Corning® Total Protection Roofing System®^.

* Ensure proper ventilation is met when applied over the entire roof deck.

^ Excludes non–Owens Corning™ Roofing Products such as flashing, fasteners and wood decking.

UL Class A Fire Resistance applies when installed under asphalt shingles and quarry slate.

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Specifications & Literature

WeatherLock® Series Ice and Water Barrier Installation Instructions

WeatherLock® Generic Ice and Water Barrier Limited Warranty PDF | 1.31 MB

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