ABSTRACT
The Government’s CLG (Department for Communities and Local Government) has a well publicised road map for improving the requirements of Part L, in stages up to 2016.
The first milestone will be changes to Part L in 2010 when new dwellings have to be 25% more efficient than those complying with the current Part L. Designers and builders will continue to demonstrate compliance by calculating the total carbon emissions of the building. This method avoids the need for prescriptive performance levels, such As U-values, and enables positive benefits such as solar gain to be taken into account.
