The estimation of internal pressures due to wind with application to cladding pressures and infiltration.

Shows that the interior pressures in buildings are amenable to more detailed analysis than is conventionally given them and that useful information on them can be easily derived from the wind tunnel data on external pressures. The uncertainties can be expressed in parallel statistical terms. The importance of fluctuating pressures are related to the area of the opening and interior volume and a simple criterion indicates when these are likely to be important. Reference is made to the importance of calculating the internal pressures in cases where buildings are in close proximity to one another and internal pressures will be biased downward by the wakes of these structures. The related problem of infiltration is discussed. This is controlled by the internal pressure regime but can be straightforwardly estimated using the experimental information from wind tunnel studies.