One of the most obvious effects of urbanization increase is the Urban Heat Island phenomenon, that manifests by significant differences in air temperature values in densely built urban areas and those in rural areas. The intensity of the phenomenon depends on the size and the development level of the town, the topographical conditions, regional climate, and diurnal and seasonal weather conditions. The harmful effects of this phenomenon occurs both at urban level and at the level of the building by discomfort and implicitly by increasing the energy need for air conditioning and mechanical ventilation. The measures to counter the phenomenon must start from the land use management. The solutions applied in order to mitigate its effects involve the integration of systems that favor the presence of vegetation on the roof terrace and green areas in the building envelope.