High-Frequency-Pressure-Integration tests were carried out in a wind tunnel by using rigid models to investigate the effects of architectural surfaces on the wind load acting on the cantilever roof, with emphasis on the height of ribs and the space of waves. The test results show that in the range of the selected parameters in this paper, the height of ribs doesn't change the mechanism of wind load, but the space of wave affects the mechanism to some extent when inflow and waves are intersected, resulting in the variations of the PSD of wind load and the wind direction of the maximum wind pressure case. When the height of ribs increases, the maximum wind suction keeps the same (wind direction is 0°), but the maximum wind pressure decreases (wind direction is 110°). When the space of waves increase, the maximum wind suction also keeps the same (wind direction is 0°), but the maximum wind pressure deduces (wind direction is 130°), especially on the part of wave.