Abstract
This paper discusses an analytical method for estimating wind pressures under roof tiles induced by the interaction between internal pressures and external pressures. First, internal pressures on roof models, whose internal volume and gaps have values equivalent to those of a real roof tile, were measured in wind tunnel tests. Next, the internal pressures were estimated analytically by applying a non-steady Bernoulli equation to the flow through the gap. The validity of the analytical method was examined by comparison with results of the wind tunnel tests. Finally, internal pressures on a whole roof were deduced from simultaneous external pressures through a roof, obtained from a wind tunnel test for a low-rise building with a gable roof, using the analytical method.
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