Mean pressure on ordinary buildings. Application to the design of ventilation systems. Champ de pression moyenne sur les constructions usuelles. Application a laconception des installations de ventilation.

The distribution and level of pressures due to the wind on the external faces of buildings condition the working of ventilation systems and hence the thermal losses. This article presents the results of wind-tunnel experiments imitating natural wind, in the form of a "mapping" of the mean pressure coefficients exerted on the ordinary forms of dwelling. Attention is also given to the local effects on extraction outlets on flat roofs.