The advice acts as 'second tier' supporting guidance in the interpretation of Approved Documents L1B and L2B that should be taken into account when determining appropriate energy performance standards for works to historic and traditionally constructed buildings.
The following areas are covered in the guidance:
- The background to the legislation and the need to reduce greenhouse gas emissions
- An interpretation of the regulations themselves as applied to historic and traditionally constructed buildings
- Understanding the buildings before carrying out upgrading works
- Meeting the requirements of part L
Advice on the thermal upgrading of various buildings