Trends in the Belgian building ventilation market and drivers for change

This paper gives the status on the regulation on ventilation in the different regions of Belgium for residential and non residential buildings. The effect of ventilation, building airtightness and duct airtightness on the energy performance regulation for buildings and its calculation method are specified. The various ways in which this regulation shows to act as a driver for market change, are identified. Due to the increased interest for energy efficiency, the ventilation industry is currently developing and promoting particular systems. However, the energy benefit of such systems can not be evaluated in the standard calculation procedure. Therefore, a framework for the assessment of innovative systems is of first importance.