Office building facades and energy performance in urban environment in Greece

This paper examines aspects of energy performance of office building facades in urban environment in Greece. Two double skin facade (DSF) types were placed to a conventional office building and were compared. A corridorDSF type and a continuous DSF type. Opaque and transparent faade elements, shading devices, internal and external openings were examined among others. The ventilation and shading strategies were validated, exploiting the characteristics of the DFS types and the specific use of the building. The outcomes were physicallyinterpreted and presented in the form of interzonal flows and annual heating and cooling demand. The selected DFS types significantly improve energy efficiencyand comfort in Greek urban areas if the proper strategies are implemented.