During the 1990s knowledge of gas risk in relation to protecting buildings was limited and as a result, a very cautious approach was taken to building on gassing sites.
Consequently, during that period many gas venting systems installed below buildings were grossly overdesigned and many designs included mechanical venting and pressurisation systems, and associated internal and external gas detection measures. Such systems can be expensive to operate and maintain, can present barriers and increased costs to the extension of buildings and also add to the carbon footprint of developments.
EPG has a wealth of knowledge in the understanding of gas risk assessment in relation to current legislation and extensive experience in the detailed design of gas venting systems. With this unique combination of expertise, we can assess the ongoing need for existing gas protection measures and determine whether active venting and/or detection systems can be downgraded or even decommissioned.
As part of our service we can provide a free consultation to advise whether or not the approach will benefit a development. Subsequent design fees for sites that can benefit from the service would be recovered by the reduced energy and maintenance costs in the short term, not to mention the improvement in carbon footprinting and sustainability credentials.
We have applied this approach to sites during the due diligence process for purchasers of buildings located on gassing sites and for local authority sites being assessed under Part IIA legislation.