§ Mr. Clifton-BrownTo ask the Secretary of State for Transport, Local Government and the Regions what climatic factors were taken into account by the Government in proposing the standards for new windows insulation under S.I. 440. [51436]
§ Dr. Whitehead[holding answer 19 April 2002]: S.I. 2002/440 requires, among other things, that members of the Fenestration Self-assessment Scheme, who seek to self-certify their work, must comply with the relevant requirements of the Building Regulations (S.I. 2000/2531 as amended by S.I. 2001/3335). These regulations apply in England and Wales. Guidance on achieving compliance in relation to window insulation standards is given in Approved Documents L1 and L2. The standards given in the guidance have been derived using Meteorological Office data for winter temperatures in the UK, and in particular how often ambient temperature falls below a pre-determined level.