Building Regulations 2010: Approved Documents L Volume 1 Conservation of fuel and power. Volume 1 - dwellings (2022 edition incorporating 2024 amendments - for use in Wales)

Publication Year

2024

Document Status

Current

Abstract

Supports Part L of Schedule 1 to the Building Regulations 2010, giving guidance for compliance with the Regulations for building work carried out in Wales. Deals with conservation of fuel and power for dwellings. Covers: the calculation of the target emissions rate, target primary energy rate, target fabric performance values and minimum energy efficiency rating; calculation of the dwelling CO2 emissions and primary energy; consideration of high-efficiency alternative systems; limiting heat losses and gains; fixed building services efficiencies and controls; system specific guidance; air permeability and pressure testing; commissioning; providing information; new elements in existing dwellings, including extensions; works to elements in existing dwellings; consequential improvements; and optional approaches for more design flexibility.

Document History

Supersedes Approved Document L Conservation of fuel and power. Volume 1 - dwellings (2022 edition) (Welsh Government, 2022). Comes into effect 31 May 2024. Various corrections made, please see Circular Letter WGC 006/2024 for further details.

ISBN

9781836250425

Publisher Information