Pressure distribution around low rise buildings.

States that one of the major difficulties in estimating air infiltration rates in buildings is lack of full scale data on pressure distribution on various structural shapes located in different types of surface roughness category. Tries to fill this gap by studying two building structures of different shapes and situated in different environments, registering the mean pressure distribution and calculating the rate of air leakage due to openings. The first house is of old type construction and in a `semi-urban' environment. The second house is a newly built prefabricated timber house with two floors, and is in an `open' environment. Compares measured mean pressure coefficients with the values given in the Swedish code of practice, and finds they vary considerably depending on the shape and location of the house.