Abstract
Monitor roofs can promote the wind-induced natural ventilation, but they exhibit variable resistance coefficients depending upon a number of factors such as monitor shape, wind velocity, wind direction. To predict ventilation rate through a monitor roof, its ventilation characteristics need to be known in advance, which is expressed as the correlation between internal pressure and flow rate; i.e. p-Q characteristics. This paper focuses on the monitor roof provided for a pitched-roof detached house and aims to arrange the ventilation design data. Therefore, the p-Q curves are created through wind tunnel tests varying the monitor shape and wind direction with a building having a monitor placed alone. Given the residential area, however, the ventilation characteristics could be changed and consequently the p-Q curves are arranged where existence of surrounding buildings, distance between buildings, and height of the next building are taken into account.
