Effects of azimuth angles α, tilt angle β, parapet height ratio Hp/Hs, and building corner modification were examined. The modules at the roof corner were subjected to unfavorable wind loads in a normal setting without α. In contrast, the unfavorable loads occurred on modules at the center of panel row close to the approaching flow for a none-zero α. The wind directions associated with the largest most critical C͝fm were 45°, 45°, 30°, and 0° at α = 0°, 15°, 30°, and 45°, respectively. The largest most critical mean and negative peak module force coefficients denoted by C‾fm and C͝fm increased as α increased. The largest most critical C͝fm at α = 45° was 19.1%, 12.5%, and 11.9% larger than those at α = 0°, 15°, and 30°, respectively. The more pronounced flow disturbance at larger α would induce larger RMS values of velocities around modules. The larger RMS values of velocities might induce larger C͝fm on modules at larger α. Both the parapet and corner modification were effective aerodynamic approaches to reduce wind loads. The effect of corner modification on wind loads depended on α. The largest most critical negative C‾fm and C͝fm decreased linearly with Hp/Hs for various α.