Multi-layer, low-density polyethylene membrane, reinforced with a polypropylene grid and integral aluminium foil.
Suitable for restricting the ingress of radon, methane and carbon dioxide into buildings from landfill and naturally occurring sources.
JUTA GP®1 Gas Barrier is a multi-layer, low-density polyethylene membrane, reinforced with a polypropylene grid with integral aluminium foil. GP®1 is specifically designed and manufactured to perform as a Methane, Carbon Dioxide, Radon, Ground Gas, VOC, air & Moisture protection system.
Features and benefits:
Should be used on any site where carbon dioxide, methane or radon is present up to and including CIRIA 665 SITUATION 6. The barrier is sufficiently resistant to the ingress of harmful gases into a building. On more heavily contaminated sites a passive or active venting system may be required to dilute the gases down to acceptable levels and specific design advice should be sought.
Multi-layer, low density polythylene membrane
Polypropylene and Aluminium
Rectangular - supplied in roll form
50 000 x 2000 x 0.6 mm
Minimum 60 years
J40/145 Loose laid weldable polyethylene gas retardant damp proofing
J40/140 Loose laid plastics or rubber sheet gas retardant damp proofing
D21/350 Gas-retardant membrane
Low-density polyethylene (PE-LD).
To BS 8485: 2015 + A1 2019
Tensile strength (minimum)
480 N/50 mm
330 N, 400 N
Elongation to break
Resistant to underground gases
Methane - 0.09 ml/m²/day atm. Carbon Dioxide - 0.09 ml/m²/day/atm. Radon - 8 x 10(-15)
British Board of Agrément (BBA) Certificate.
Certificate No. 12/4912.
CE Mark - EN 13967
Polypropylene reinforcing grid with aluminium foil.
Roll length (minimum)