Gas and Radon Membranes
As part of the UK Government’s commitment to increasing housing construction, they have launched several initiatives to streamline the remediation of brownfield sites for re-development.
Comprehensive ground gas protection systems are an essential part of preparing brownfield sites to prevent hazardous gases and contaminants from entering buildings and harming occupants. The level of risk is determined by the type and quantity of gas/contaminant present, the zoning of the site, and the type of construction proposed specifically the design of the floor, slab and substructure.
INCLUDED IN THE RANGE
Civils and Lintels stock in all depots the A. Proctor Group Ground Gas Protection membranes including Protech® GM Super, Protech® VOC Flex and Radon 400 Standard.
Protech® GM Super Proprietary Gas Membrane – A 1600g BBA certified reinforced LDPE membrane that incorporates a 12 micron aluminium foil layer for maximum protection against Radon, Carbon Dioxide and Methane. The membrane is flexible and extremely robust for ease of installation. Protech® GM Super also provides sufficient damp proofing below the slab replacing the need for an additional DPM.
Protech® VOC Flex Proprietary Gas Membrane – A high performance 6-layer chemical resistant reinforced VOC barrier designed and tested to provide maximum protection from an extensive range of dangerous contaminants including the 9 Challenge Chemicals in both liquid and vapour form. Protech® VOC Flex has been designed to be extremely robust yet flexible for ease of installation and can be used in place of a DPM.
Radon 400 Standard – Radon 400 Standard is a high quality, robust radon membrane. Manufactured from virgin polymer this unreinforced, flexible membrane is easy to install on site. It can be jointed with use of our Protech tapes or heat welded. Radon 400 Standard also acts as a high performance damp proof membrane, therefore there is no need to install a separate DPM
Protech Liquid Applied Gas Membrane (LAGM) – A simple solution for complex detailing, LAGM is a single component acrylic modified liquid applied coating that provides protection against Radon, Carbon Dioxide and Methane, as well as waterproofing and damp proofing, once cured. LAGM bonds well to porous and non-porous substrates and can be applied with a brush, roller or airless spray.
Provoid Venting System – A single-sided crush-resistant geocomposite layer that provides a ventilated void or pressure relief pathway beneath floor slabs. Four thicknesses of Provoid are available and can be laid as a full blanket or in strips at predetermined centres depending on site requirements. Provoid T-Connectors, Provoid Gully Vent Boxes and other accessories are integral to the system’s design and will help ensure ground gases are diluted to safe concentrations as per site requirements.
Talk to your local branch if your project requires gas membranes.
GX Geomembrane – Designed for brownfield sites that require protection from dangerous contaminants such as hydrocarbons and methane. A high-performance blend of ethylene co-polymers providing a HDPE layer that also acts as a damp proof membrane. High puncture and impact resistance, does not require protective screed or boarding when covered with reinforced concrete.
