Measurement techniques for ventilation and air leakage.

Ventilation has a considerable influence on both the indoor air quality and energy consumption of buildings. Three parameters can be identified which are of key importance in the assessment of ventilation behaviour: air change rate, interzonal air flows, air leakage characteristics. This paper describes measurement techniques which enable these parameters to be evaluated. The listof techniques presented is not exhaustive and the descriptions given are not particularly detailed. The main aim of this report is to illustrate the spectrum of techniques which are currently available for the quantification of ventilation and air leakage.