VENTILATION AND ENERGY CONSUMPTION IN FINNISH DETACHED HOUSES

Timber-framed buildings have been studied in Finland in a large-scale study by Tampere University of Technology and Helsinki University of Technology. In this paper the results of ventilation rate measurements (both anemometer and tracer gas measurements) and ventilation sound pressure level measurements are presented. Also, the total energy consumption of the houses and the overall fulfilment of given regulations and recommendation values in different areas are discussed. Measured ventilation rate of the houses was about 0.4 1/h. Bedroom supply ventilation did not in most of the houses reach the recommended values. The recirculation airflow, between the bedroom and the rest of the dwelling, improved bedroom ventilation. The mean value of ventilation sound pressure level in the bedrooms was 22 dB(A). The energy consumption of the houses varied a lot. The explanation to this seems to be the differen