Part L 2014 – where to start: an introduction for house builders and designers – timber frame construction (for Wales)

Conservation of fuel and power in new dwellings in Wales

This guide provides a starting point for designing new homes to comply with the 2014 edition Approved Document L1A – Conservation of fuel and power in new dwellings in Wales. It gives examples of some typical homes, outlining a combination of measures needed to comply with ADL1A 2014. The intention is to give a broad understanding of the specifications for timber frame construction that may be adopted as a starting point for detailed design. It also illustrates the effects of thermal bridging, which can have considerable impact on the approaches to overall compliance.