The RSK/NHBC “Guidance on evaluation of development proposals on sites where methane and carbon dioxide are present” is now available as a free download pdf, on the NHBC Builder website – www.nhbcbuilder.co.uk . (Go to building support services/technical advice and support/publications).

CIRIA’s publication on “Assessing risks posed by hazardous gases to buildings (C659)” is currently being updated and will be re-published as report C665 – “Assessing risks posed by hazardous ground gases to buildings (revised)”.  Copies will be available from late May, and advance orders for copies of this title can be purchased from the Ciria bookshop (www.ciriabooks.com).