On the green roof system. Selection, state of the art and energy potential investigation of a system installed in an office building in Athens, Greece

A detailed and integrated presentation of the green roof systems is provided in the present paper. Aiming to analyse a specific urban case study, we describe the basic architectural and scientific principles that characterize its performance and efficiency. Furthermore, a state of the art presentation of the system is provided, including the presentation of several case studies as well as a selection and description of plants that usually are extensively used in the green roof system all over the world.