COLPHENE BSW H is an SBS-modified bitumen waterproofing membrane for use in approved blind side/under slab waterproofing assemblies. COLPHENE BSW H is composed of a proprietary formulation of elastomeric styrene-butadiene-styrene (SBS) polymer modified bitumen and is reinforced with a tough, dimensionally stable non-woven polyester mat. COLPHENE BSW H is designed for horizontal blind side/under slab waterproofing applications. The topside is surfaced with fine mineral aggregate and the underside is surfaced with polyolefin burn-off film.

Product Properties

  • Installation Method Loose laid


Prior to installation, unroll COLPHENE BSW H and allow to relax. Loose lay COLPHENE BSW H in desired position on approved prepared substrate. Once the membrane is in the desired location remove the release film on the DUO SELVEDGE side lap. Once the self-adhered portion of the lap is adhered, a heat welding device is used to seal the lap. Refer to the SOPREMA SBS Waterproofing Manual for additional application guidelines.

Testing & Approvals

Share this page