A review of the proposals for amending the energy efficiency provisions in the Building Regulations for dwellings

Reviews the UK government’s proposals for amending the energy efficiency of new dwellings. With the aid of worked examples the alternative calculation methods for U‐values are demonstrated. The author concludes that the new methods are cumbersome to calculate by hand and that where there is only one bridged layer the difference between the old and new methods is negligible. It is envisaged that manufacturers and SAP providers will quickly provide new calculation suites to enable designers to undertake calculations effectively and easily.