Visqueen Ultimate RadonBlok 400

Visqueen Ultimate RadonBlok 400 is a flexible 0.4mm thick high performance co-polymer thermoplastic membrane. The product is purple in colour and supplied 4m x 25m in centre fold format. Other sizes and formats are available on request including single wound i.e. no folds.

Product Information:

  • Core Type
  • Gauge / Mil
  • WVTR (Water Vapor Transmission Rate)
  • Color(s)
    Blue, Purple
  • Length
    25 m
  • Material
  • Width
    2 m

Features & Benefits:

  • Agrement certified - third party accreditation
  • Conforms to BR 211:2015 - industry guidance for radon protection
  • Robust - resistant to on site damage
  • Flexible - easy to detail and install on site
  • Enhanced polymer technology - performs in cold weather
  • Multi functional - also acts as a damp proof membrane
  • Dual jointing methods - lap joints can be taped or heat welded

Regions Available

  • Europe

Ideal For:

Visqueen Ultimate RadonBlok 400 is used to prevent the ingress of radon in both basic and full radon protection areas. The membrane can be positioned within the ground floor construction either above or below the structural floor. The product is not intended for use where there is a risk of hydrostatic pressure.


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