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SAPs EPCs and Code for Sustainable Homes

Extensions

L1B of the building regulations require extensions where there will be an amount of glazing that accounts to the equivalent of 25% of the extension floor area or when a highly glazed area, such as an.....

L1B of the building regulations require extensions where there will be an amount of glazing that accounts to the equivalent of 25% of the extension floor area or when a highly glazed area, such as an orangery, is to be opened up to the main house, to demonstrate that it will not be detrimental to the overall energy performance of the property as a whole.

Required For:

  • Extensions with large areas of glazing
  • Building regulations compliance

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