VOC & Ground Gas Resistant Membranes

When designing and constructing new buildings, in line with Building Regulations Part C, it is important to consider the potential risks associated with ground gases, VOCs and contaminants. Pressure differentials and concentration gradients that may exist between the internal and external areas of buildings, can result in the ingression of ground gases and other contaminants into a structure typically through construction joints, gaps around service entries, and wall cavities.

Hazardous substances can include VOCs and Hydrocarbons, Methane, Carbon Dioxide and Radon; elevated levels can cause a number of health and safety issues to the building and its inhabitants. These issues include, but are not limited to, potentially flammable and explosive risks, danger of asphyxiation and in extreme cases, cancer. To find out more about VOC’s and ground gases and their associated risks, please refer to our VOC & Ground Gas Protection Brochure.

The table below provides guidance on how to select the most appropriate membrane from the range available, based upon the hazards identified as posing a risk to the proposed building or installation:

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