Conservation of fuel and power: Approved Document L, Volume 1 — Dwellings

O N L I N E V E R S I O N Interaction with Part E 0.21 This approved document, Approved Document L, Volume 1, provides guidance on insulation that is reasonably continuous and limits thermal bridging. Construction junctions should limit noise transfer where Part E of the Building Regulations sets a requirement. Approved Document E should be followed. Interaction with Part F 0.22 This approved document, Approved Document L, Volume 1, provides guidance on reducing unwanted heat loss, by achieving optimum airtightness. When specifying the minimum amount of purpose-provided ventilation, consider the air infiltration of a dwelling; follow Approved Document F. Interaction with Part J 0.23 This approved document, Approved Document L, Volume 1, provides guidance on airtightness. For guidance on permanent ventilation openings for open flued appliances in very airtight dwellings, follow Approved Document J. Interaction with Part K and Part M 0.24 This approved document, Approved Document L, Volume 1, provides guidance on controls for fixed building services and on-site electricity generation. Manual controls, where provided, should be within reasonable reach of the occupants. Follow the guidance in Approved Documents K and M. Building Regulations 2010 Approved Document L Volume 1, 2021 edition 5 O N L I N E V E R S I O N