We are currently seeking a simple solution to overcome the problem of radon gas protection in conjunction with beam and block floors - for residential use. Is there anyone who can provide any suggestions or has any details they can pass on?
Austin Williams writes:
BRE Report 414: (Updated 2001) Protective measures for housing on gas contaminated land includes details on most major types of construction projects, including beam and block (pages 6-12). BRE reports BR211 and BR212 describe the construction principles that need to be followed on sites where there are elevated levels of radon, methane and carbon dioxide. Although these contain specific advice, BRE 414 is a manual providing guidance on the detailing and construction of passive gas protective methods.