Effects on ventilation behaviour of inhabitants in residential buildings.

The effects on ventilation behaviour of inhabitants in residential buildings have been investigated as a part within several years' German R and Dprogramme. The investigations have shown that the ventilation behaviour seems to be dominated by traditional behaviour patterns, e.g. ventilating bedrooms, and subjective impressions. There is only a modest correlation between window opening and needs for indoor air quality and energy conservation. Up to nowmost of the inhabitants do not assess correctly their own window opening behaviour. Also different ventilating systems did almost not influence the inhabitants' window opening behaviour. The main reasons may be a lack of information and motivation.