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 dioxideemissions6.2 building insulationenvelope6.3 heating system6.4 insulation ofpipes, ducts and vessels6.5 artificial anddisplay lighting6.6 mechanical ventilationand air conditioning6.7 commissioningbuilding services6.8 written information6.9 energy performancecertificates6.10 metering (non-domesticonly).It should be notedthat standard 6.1 “carbon dioxide emissions” only applies to new buildings, wherea “whole building” approach is possible.