Estimation of rate of air infiltration based on full-scale wind pressure measurements.

Natural and forced ventilation are directly and indirectly influenced by the pressure distribution around a building. Results of full-scale pressure measurements on a typical Swedish timber house are presented. The rate of air infiltration has been calculated by employing the values obtained from full-scale pressure distribution, air leakage characteristics and temperature differences. The results are compared with the actual ventilation obtained from tracer gas measurements. The study shows the inadequacy of the existing calculating model when used in conjunction with full-scale measured data. It seems that further efforts are needed to correlate the experimental and theoretical models.