1. The Building Regulations 2000. Approved document L1A. Conservation of fuel and power in new dwellings. 2006 edition. The Stationery Office. Free download available.
2. BS EN ISO 13789:1999 Thermal performance of buildings – Transmission heat loss coefficient – Calculation method.
3. National Calculation Methodology document – in preparation.
4. IP 17/01. Assessing the effects of thermal bridging at junctions and around openings. Tim Ward. BRE East Kilbride.
5. The Government’s Standard Assessment Procedure for Energy Rating of Dwellings – 2005 Edition. Published on behalf of DEFRA by BRE. Free download available.
