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Model: GWTTE506 A monolithic LDPE barrier designed primarily for use with Radon gas. Fully Radon Gas tested and approved by NSAI (IAB) meets the requirements of BRE211. Standard roll size 4x20. Thickness: 300mu (1200 gge) Intro
Radon (incl. Rn-222, Rn-220, RnD) is a naturally occurring radioactive gas which enters buildings from underlying soil. The gas can accumulate within a building to such a concentration as to constitute a health hazard. Radon is excluded from buildings using passive and active systems. The provision of a suitable protection system, designed and installed by competent personnel will substantially reduce the risk of a building having radon activity above a recommended target health level of 10-40 Bq/m3 (USA). Passive control systems consist of a radon resisting membrane extending across the whole of the building, including the floors and walls. These systems should also incorporate an underfloor ventilated sump or sumps which can be subsequently converted into an active control system by the use of suitable ventilation fans. A radon resisting membrane will also act as a damp proof membrane to protect the building against ingress of moisture from the ground. Property Test Method Data Weight 276G/M2 Thickness 300 Tensile Strength MD 17.7MPa
CD 17.3MPa Elongation MD >860%
CD >910% Dart Impact Strength 0.710kg Tear Resistance MD 100N/mm
CD 94.5N/mm Low Temp Flexibility -40 degrees C Radon Permeability 4.7x10-(12) m2/ s MVTR 0.12g/m2/day Standard Roll Width 4m Standard Roll Length 20m Standard Roll Weight 22.08kg | 
