To ask the Scottish Executive, further to the answer to question S3W-2352 by Stewart Stevenson on 7 August 2007, under what circumstances a building owner is required to comply with current building regulations when converting, altering or extending an existing building and which sections of building regulations require to be complied with under such circumstances.
I have asked Dr PaulStollard, Chief Executive of the Scottish Building Standards Agency (SBSA), to answer.His response is as follows:
Schedule 2 to Regulation4 and Schedule 6 to Regulation 12 of the Building (Scotland) Regulations 2004, asamended, respectively list all of the ‘triggers’ for conversions and current buildingstandards which either apply to or apply so far as is reasonably practicable toconversions. With regard to energy, where a building is converted, so far as isreasonably practicable, it shall meet the energy standards 6.2 - 6.6 and shall notfail those standards to a greater degree than before the conversion. It shall alsomeet the requirements of energy standards 6.7 - 6.10.
With respect to alterationsand extensions to existing buildings, the new building work shall meet standards6.2 - 6.10 and shall not cause the remainder of the building to fail the standards,or in the case of an older building, to a greater degree than before.
The energy standardsreferred to above are contained in Schedule 5 to Regulation 9 of the Building (Scotland) Regulations 2004, as amended and are as follows:
6.1 carbon dioxideemissions
6.2 building insulationenvelope
6.3 heating system
6.4 insulation ofpipes, ducts and vessels
6.5 artificial anddisplay lighting
6.6 mechanical ventilationand air conditioning
6.7 commissioningbuilding services
6.8 written information
6.9 energy performancecertificates
6.10 metering (non-domesticonly).
It should be notedthat standard 6.1 “carbon dioxide emissions” only applies to new buildings, wherea “whole building” approach is possible. Where a building is converted, alteredor extended it is not feasible to apply standard 6.1 and in these cases a traditionalelemental approach is followed.