Conservation of fuel and power: Approved Document L, Volume 2 — Buildings other than dwellings

O N L I N E V E R S IRO N40, R40A Section 9: Providing information Operating and maintenance instructions 9.1 For a new building and for work to an existing building, operating and maintenance instructions should be given to the owner of the building in a building log book. The log book should follow the guidance in CIBSE’s TM31. 9.2 Information in the log book should be presented in templates the same as or similar to those in CIBSE’s TM31. NOTE: Information in the log book may draw on or refer to information available as part of other documentation, such as the operation and maintenance manuals or the health and safety file. Further advice is provided in BSRIA’s BG 26/2011. 9.3 For new buildings and for work that has been carried out on existing buildings, the information provided should contain all of the following. a. Information so that the building can be operated in an energy efficient manner, including information about: i. the building ii. the fixed building services and on-site electricity generation iii. the maintenance requirements of the fixed building services and on-site electricity generation. b. A copy of the completed commissioning records. Additional information for new buildings 9.4 For new buildings with a total useful floor area over 1000m2, the information to be handed over to the building owner should include a forecast of the actual energy use of the building in kWh/year broken down by fuel type. The energy forecast should include all metered energy uses, including unregulated loads. This may be determined using any of the following methods, and should be recorded in the building log book: a. design calculations b. energy benchmarks c. an energy forecasting methodology such as CIBSE’s TM54 d. other building modelling or spreadsheet tools e. any combination of (a) to (d). NOTE: The compliance outputs of SBEM or other Building Regulations compliance tools are not suitable for direct use as energy forecasting estimates for any size of building. 65 Building Regulations 2010 Approved Document L Volume 2, 2021 edition O N L I N E V E R S I O N