1. An obvious one, however cannot be omitted. Window area to wall area ratio need to be kept in check. For standard constructions used, if 

BASIX New Targets As BASIX new targets have been rolled out since July the 1st 2017, the nature of our work has changes quite a lot, as...

Another key aspect is the insulation. Generally speaking ceiling insulation followed by wall insulation are the key factors for improving en