Field measurements were made during the heating season to compare IAQ between an air– conditioned building (Building A) and a naturally ventilated building (Building B) situated in the centre of Pyongyang and similar in architectural design, number of occ
The envelope as fictional building element acts as a filter intended to regulate energy andmass flows. The overall performance of the envelope is ascertained by the combined effects ofthe functional components. Thus a methodical approach is required for the comparativeappraisal of envelope alternatives in terms of multiple perfomance requirements andidentication of the best overall performer.