Visqueen Zedex CPT High Performance Damp Proof Course (DPC) is a black, flexible 0.8mm co-polymer thermoplastic (CPT) damp proof course and cavity tray system. It is manufactured from a mixture of thermoplastic polymers and additives including elastomers. The product does not conform to BS6515:1984. The DPC is supplied in 20m length rolls and the following widths: 100mm, 112.5mm, 150mm, 225mm, 300mm, 337.5mm, 450mm, 500mm, 600mm, 700mm, 750mm, 800mm, 900mm, 1000mm, 1200mm and 1400mm Features & Benefits BBA certified - third party accreditation Assessed in accordance with Technical Requirement R3 - conforms to NHBC requirements and suitable for NHBC sites Gas resistant - part of the Visqueen Low Permeability Gas Membrane system to provide gas protection to NHBC Amber 1 Used in conjunction with the Visqueen Radon membranes to provide radon protection Widths from 100mm to 1400mm Visqueen Preformed Units available - simplifies complex or awkward detailing