Proposed SAP improvements
24th January 2012

BRE has, on behalf of DECC, launched a public consultation on the latest proposed changes to SAP – the Standard Assessment Procedure for the Energy Rating of Dwellings.

A principal purpose for the new SAP 2012 will be to underpin the 2013 update of Part L of the Building Regulations and equivalent legislation in Wales, Scotland and N Ireland.

Proposed improvements cover the treatment of boiler systems, the use of regional weather data, default heat pump performance, pipe insulation and thermal bridging.   

The consultation also proposes amendments to CO2 emission factors so as to include the global warming impact of CH4 and N2O emissions as well as CO2. 

To see the proposed changes, and have your say on them, go to www.bre.co.uk/sap2012.