GAF SA Vapor Retarder Specs
GAF SA Vapor Retarder Docs
GAF SA Vapor Retarder Videos
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.
Where to buy
Find a commercial distributor near you.