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Building Regulations - Part L Building Regulations- Conservation of Fuel and Power 2007 |
 Part L is specific to dwellings. It controls the insulation values of building elements, the allowable area of windows, doors and other openings, air permeability of the structure, the heating efficiency of boilers and the insulation and controls for heating appliances and systems together with hot water storage and lighting efficiency. It also sets requirements for SAP and Carbon Index ratings for dwellings. Further regulations also require the advertising of these ratings.
ADL1 is supported by a set of robust standard construction details.
Part L2 relates to all building uses other than dwellings. In addition to insulation requirements and limitation of openings of the building fabric this part considers solar heating and heat gains to structures. It controls heating, mechanical ventilation and air conditioning systems, lighting efficiency, space heating controls, air permeability plus air tightness testing of larger buildings, solar emission, the certification, testing and commissioning of heating and ventilation systems, and requirements for energy meters.

For a limited time we are also pleased to be able to offer three extra publications. Materials and workmanship click here Guide to the building regulations click here model certificates As needed to comply with part P or BS 7671 Initial inspection and testing (Forms 1 to 4) click here
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