This Note describes a wind tunnel study to investigate the magnitude and variation of pressure coefficients produced at the eaves and along the roof ridge of an isolated detached two storey house model. Pressure coefficients at these roof locations have a strong influence on the ventilation rates experienced in the attic or roof space. The model was exposed to an urban type atmospheric boundary layer. The effect of wind direction on the pressure coefficients was examined. The study suggests the locations of ventilation openings in the eaves and roof ridge to enhance ventilation rates.
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References
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