Butek - Gas Membrane
Six principal gas membranes are offered, each developed for specific applications including methane: Landflex ZR60 is a high performance reinforced aluminium foil polyethylene composite, most usually used in domestic housing and high risk ground gas situations. Landflex PEHD is a specially formulated HDPE often used in conjunction with gas venting systems. Landflex PELL is a high flexibility yet robust LLDPE used frequently for prefabricated gas membrane panel supply.
Landflex Elvaloy 90 is a textured, reinforced, highly flexible hydrocarbon gas membrane, used as protection against the highest levels of site hydrocarbon and VOC contamination and is suitable for prefabrication into panels up to 500m². Landflex Ecobarrier, our 0.5mm graded, recycled Geomembrane completes the range.
Landflex HC is a multi layer polyethylene gas and hydrocarbon membrane that complies with the latest codes of preactise as published by BRE, CIRIA (C748) and BSI (BS 8485:2015). It is highly suited for ground gas / hydrocarbon protection for NHBC Green, Amber 1, Amber 2 and Red site characterisations.