Wind effects on buildings with varying leakage characteristics - wind tunnel investigation

Reports wind-tunnel tests on simple cubical model made of plastic to see effect of outside wall leakage on internal and external pressures. Three wind directions are studied and results extended to smoke-control problems. A method has been developed to modify the roof-vent design calculations to takewind effects into account. Shows failure of vent systems may bemore common than would be expected from current design methods.Concludes that leakage characteristics do not have any appreciable effect on outside wind pressures but do affect strongly the internal pressures. NOTES A critical discussion of this paper by T. Stathopoulos and a reply by the author are given in Jnl.Ind. Aerodynam.. October 1979 vol 5 nos 1,2, p191-194.