Three hundred and sixty different orientations of a single model with two different building skins were studied and evaluated with respect to their thermal performance. Additionally, the impact of orientation on space indoor temperature and space cooling and/or heating load in a hot dry climate was studied and evaluated. A predefined computer program using the transient heat transfer method and thermal response factor method was utilized as the main research tool. The search showed significant differences between orientations of building, especially in the case when the building is thermally insulated.