Visqueen Building Products – part of RPC bpi recycled products – has launched a new range of Ultimate Gas membranes for protection against dangerous gases and chemicals, in compliance with the latest standards for building on brownfield or contaminated land.


Utilising Visqueen’s advanced barrier technology the new membranes are the result of an extensive R&D programme and testing regime to ensure the membranes are both the best in class and comply in particular with the exacting requirements of both BS8485:2015 and CIRIA C748.

Brownfield areas, by their nature, present a number of challenges including contamination by hazardous waste or pollution, and effective barriers are therefore an essential part of their re-development. Building regulations and codes of practice have evolved over the years to ensure safety during the development process.

Understanding these standards has formed a key part of Visqueen’s R&D programme with the creation of a range of products specifically designed for different applications – from radon gas protection through to VOC immersions and full waterproofing. As part of this, the company has prepared a new brochure with a test checklist to enable developers to easily select the Visqueen product that meets their specific requirements and delivers the relevant compliance.

Visqueen’s comprehensive service also includes the availability of the company’s design specialists to provide bespoke CAD drawings to help with complex detailing on a project. Together with access to a dedicated team of highly knowledgeable field based technical support managers, this provides a complete solution for the delivery of the appropriate gas protection system for each application.

“The pressures of population growth and housing shortages have driven the development of brownfield sites and with this has come the need to meet much more stringent building regulations”, comments Phil Bull, Sales Director, Visqueen Building Products.

“With new advanced barrier technology, the Ultimate range will form an integral part of our gas protection solutions. The range is completely unique in the marketplace and with real world testing, we can be certain they are compliant with all of the requirements outlined in both CIRCA C748 and BS8485:2015”.

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