Description
| Roll Size | 4m x 25m |
| Thickness | 0.4mm |
| Watertightness at 2kPa for 24 hours | Pass |
| Material | flexible thermoplastic membrane |
| Colour | Purple |
Visqueen Radonblok 400 4m x 25m
£306.89 excl. VAT
Visqueen RadonBlok 400 Membrane
Visqueen RadonBlok 400 is a high-performance membrane designed to protect buildings against radon gas and ground moisture. This flexible, purple-coloured membrane is suitable for both new-build and refurbishment projects in radon-affected areas.
Key Features
- Acts as both a radon barrier and damp proof membrane
- 0.4mm thick, flexible virgin polymer
- Dual jointing options – tape or heat welded
- Supplied in 4m x 25m centre-folded rolls
- Suitable for floors above or below slabs
Installation Overview
- Minimum 150mm overlap at all joints
- Use with Visqueen RadonBlok Tape and Pro Tape
- Heat welding permitted for sealed joints
- Install on smooth substrates like sand or concrete blinding
- Seal around pipes and penetrations with Top Hats or Detailing Strips
- Protect from UV and site damage immediately after laying
Accessories:
Visqueen RadonBlok Double Sided Tape
Detailing Strips (300mm / 500mm)
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