The wind pressures on the upper and lower surfaces of the modules indicate negative values where photovoltaic modules are installed on the roof of buildings. Therefore the mean wind forces on the modules are relatively weak. On the other hand, the peak wind forces on the modules become severe due to the differences of fluctuating wind pressures on the upper and lower surfaces. This paper presents the design wind force coefficients for photovoltaic modules installed on the gable roof of low-rise buildings, based on the peak wind force coefficients which are measured the wind tunnel experiments.
