In the paper, computational fluid dynamics analysis is performed for a B apartment building complex, in which building claddings were damaged when Typhoon Maemi hit the Korean Peninsula in September 2003. Wind pressure for two inner buildings was investigated according to the existence or nonexistence of neighboring buildings for the wind directions of S, SE, SSE and SSW. When two inner buildings were surrounded by neighboring buildings, negative wind pressure coefficients, ranged from about -0.1 to -0.7, occurred on the frontal surfaces of two inner buildings. However, when there were no neighboring buildings around two inner buildings, positive wind pressure coefficients, ranged from about 0.0 to 0.98, occurred on the frontal surfaces of the buildings. It was inferred from the study that building window glasses could be broken in a suction condition by strong negative pressures due to the shielding effect of neighboring buildings.