The new Part L, due to come into force in October 2010, will require a 25% improvement 2006 standards for every new home. An aggregate approach for improvement of new non-domestic buildings will deliver an improvement of 25% overall, rather than for each individual building. This is because there is greater variety among non-domestic buildings and some will be much easier than others to make efficient. The changes to Part L will increase the minimum levels of energy efficiency for building fabric and services, so that CO2 ...

Approved Document L1B 2010, RIBA Enterprises, London

ISBN-13: 9781859463253

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