Page 8 - S:\tracie.delicata\Documents\Marketing\Brochures.Manuals\ButekLandlineBrochure2018\ButekLandlineBrochure2018 Folder\

www.butek-landline.co.uk

Specialist Gas Protection Membranes Drainage & Gas Venting Geocomposite

Building regulations require that proper preventative measures be taken to avoid A highly flexible, strong Polyethylene material with a cuspated core, Pozidrain has a non
danger to health and safety when building on contaminated land. Our Gas Barrier woven geotextile filter fabric bonded either one or both sides. Pozidrain is a sustainable,
systems offer a safe solution for the protection of buildings and their occupants environmental alternative to traditional filter stone.
constructed in areas where gases are present – such as disused mines, coalfields,
industrial and landfill sites. Used predominantly for Landfill applications such as leachate collection, this product
is also highly suitable for gas venting, groundwater drainage collection, capillary break
Landflex HC Hydrocarbon Barrier layers, vertical cut-off trenches, leakage detection layers, embankment drainage and
0.5mm thickness multi-layer polyethylene gas and hydrocarbon membrane, specially slope stabilisation.
designed and manufactured to perform as a Methane, Carbon Dioxide, Radon, Ground Gas Barrier Installation in a newly built Primary School
Gas, VOC, air, moisture and Hydrocarbon protection system. Among its many benefits the material:

Complies with the latest codes of practise as published by BRE, CIRIA (C748) and BSI • Is easy to handle
(BS 8485:2015). Suitable for use as ground gas / hydrocarbon protection for NHBC • Eliminates filter stone
Green, Amber 1, Amber 2 and Red site characterisations. • Creates volume in landfill
• Allows use of lower specification backfill materials
Landflex Gasflow 25 – Specialist Gas Protection Membrane • Reduces excavation and backfill
Geocomposite Venting Layer • Offers high impact and crush strength
Universal application 25mm high flow geocomposite suitable for water or gas, supplied • Has a high flow capacity
in rolls of 0.9m x 50m. • Acts as a protection to the geomembrane
• Allows ease and speed of installation without specialist equipment
UV stabilised geotextile layer filter, thermally bonded on one side of a cuspated HDPE • Greatly reduces traffic volumes compared to drainage stone
core. Suitable for both active and passive venting systems. Main applications are Landflex HC Hydrocarbon Barrier
removal of Radon, Methane, Carbon Monoxide, Hydrogen Sulphide etc., from below Standard roll dimensions:
base slabs of offices, industrial and commercial buildings. 4.4m wide x 100m
0.915m wide x 50m
Landflex ZR60 – Specialist Gas Protection Membrane
Landflex ZR60 is recommended for use where medium to high concentrations of radon
gas occur, or where methane, carbon monoxide and other gases are present. It can also
serve as a damp proof membrane in solid concrete floors to protect structures against
moisture from the ground.

Manufactured from multi-layer low-density polyethylene (LDPE) with a multi filament
polyester (1670 dtex) reinforcing grid between to provide high strength and tear
resistance, the membrane also incorporates an aluminium foil core for low gas
permeability. Landflex Gasflow 25

Landflex ZR60 is manufactured to last the lifetime of the construction provided it is
correctly installed by trained technicians and not subject to mechanical damage by
other building operations. The material has high puncture resistance and will not be
damaged by normal footfall or site traffic on smooth or blinded surfaces.

Landflex Gasflow 25

Page 8 Specialist Gas Membranes