GAF SA Vapor Retarder Specs

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      Why GAF SA Vapor Retarder?

      GAF SA Vapor Retarder is an SBS modified bitumen vapor retarder for use in approved GAF roof assemblies. 

      GAF SA Vapor Retarder is composed of a proprietary formulation of elastomeric styrene-butadiene-styrene (SBS) polymer modified bitumen in combination with a high tack self-adhesive. The topside is surfaced with high-strength tri-laminate polyethylene film and the underside is surfaced with protective polyolefin release film that is removed during application.

      Benefits

      Benefits of GAF SA Vapor Retarder include:
      • 45" roll provides increased coverage across roof deck
      • Easy-to-peel release film for faster installation
      • Durable top surface protects roof from inclement weather
      • High tensile strength provides resistance

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