Category Archives: Latest news

Visqueen Gas Barrier receives updated BBA Certification

We are pleased to announce that they have received their renewed BBA Certification for the Visqueen Gas Barriers.


Visqueen Building Products Gas Barrier has achieved re certification due to it being retested in line with the new requirements to BS8485:2015. The Visqueen Gas Barriers meet the standards outlined in the BS8485:2015 document and has also passed BS ISO 15105-1, which is the methane permeability testing that these products must pass.

The Certificate relates to Visqueen Gas Barrier, a gas barrier and damp-proof membrane, for use in concrete ground floors above and below slabs not subject to hydrostatic pressure, to protect the building against moisture, radon, methane and carbon dioxide from the ground.

The key factors of the Gas Barriers which were assessed are, the resistance to water vapour, resistance to underground gases, resistance to puncture and the overall durability of the Gas Barrier. Continue reading

Visqueen Gas Venting system ensures compliance to BS8485:2015

Visqueen has developed a comprehensive passive venting solution to facilitate the dilution and dispersal of dangerous gases. Used extensively across the UK.


Visqueen offers a variety of solutions to disperse gas safely from beneath buildings. The type of passive venting system required is dependent on the building type and the amount of gas flow.

Current UK construction practice adopts the concept of multiple gas protection measures to form a gas control system. Typically, protection measures increase in number and robustness as the potential risk increases.

The gas protection solution is based on a point scoring system in accordance with BS8485:2015. Continue reading

Recognising change to ensure BS 8485 compliance

In June 2015, BSI, the Business Standards Company, revised (and renamed) BS 8485Code of practice for the design of protective measures for methane and carbon dioxide ground gases for new buildings”.

Visqueen - Compliane BS8485

The standard is a key piece of guidance for design consultants to give recommendation and describe methods for the investigation of ground gases like methane and carbon dioxide during development of affected sites, and regulators (environmental health officers and building control) who need to assess/approve foundation designs.

The original document; BS8485:2007 was brought up-to-date in the new version: BS8485:2015. The thinking behind this was that the original standard didn’t go far enough in regards to the specification of the gas membrane itself and the British Standards Institute wanted to enforce more stringent permeability levels, especially where methane gas is concerned. This is in order to increase resistance to methane gas permeation through the membrane.

Key changes to BS 8485:

  • Clearer guidance on the interpretation of gas monitoring data and assignment of gas screening values
  • Reference Technical Note RB17 characteristic situations classification using TOC (toxic organic compounds)
  • Review and expanded guidance on protection measures scoring (old Table 3)
  • Include reporting requirements of gas protecting measures
  • Added informative guidance in annexes on radon and volatile organic compounds (VOC’s)
  • More detailed guidance on interpretation of gas monitoring data
  • Recommendations on membrane selection and verification

Phil BullPhil Bull, Commercial Director at Visqueen Building Products said:

 “It is vitally important that the industry recognises that BS8485: 2007 has gone and is no longer valid unless the contractor using the products had a planning condition in place prior to June 2015. Here at Visqueen we are adapting our existing gas barriers and membranes to ensure full compliancy required by BS8485:2015. It should be a priority for every relevant manufacturer to start the process of adhering to the latest version of the standard.” Continue reading

Visqueen announces promotion of Laura Guy to National Key Account Manager

We are pleased to announce the promotion of Laura Guy to National Key Account Manager.

Phil Bull, Commercial Director at Visqueen Building Products said:

“Laura has displayed great leadership and direction during her time as Business Development Manager and we are excited to announce her promotion to National Key Account Manager. We look forward to the continued growth in the company’s performance with Laura’s support as we expand our range and reach throughout the UK.”

He went on to say:

“Laura’s position in her new role will see the support function for our biggest customers go from strength to strength. Her industry expertise coupled with her strong business acumen will prove to be great assets to the role and we look forward to supporting her in her latest venture for Visqueen.”

Laura Joined Visqueen in 2009 as customer focused team leader, where she quickly made an impact throughout the business. Two years later she was promoted to customer focused manager, followed by another promotion to Business Development Manager in August 2014.
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