rehabilitation

An urban heat island results in higher urban temperatures than the surrounding area and is considered as the most documented phenomenon of climate change. This increase in urban temperature has a serious impact on the energy consumption for cooling and also contributes to higher urban pollution levels. Athens suffers from high summer temperatures that affect the quality of life of citizens. In response to the problem, a major rehabilitation plan was designed and applied, based on the use of advanced mitigation techniques.

In France, for historical and demographic reasons, many educational buildings must be retrofitted in the next years.However, various studies showed that measurements of energy savings, and improvement of comfort, are rarely applied in the retrofitting operations, because of a lack of knowledge of the decision makers concerning the potential improvements.The program REDUCE of International Energy Agency - ECBCS Annex 36, and studies aiming at promoting the high environmental quality of the educational buildings in France, showed the existence of a potential improvement of the energy efficie

Several high schools in the south east of France are subject to a major work of renovation. These works need to take into account the problem of summer comfort for a better well-being and intellectual performance of students. One of it was chosen to carry a study on the specific constraints for achieving summer comfort. The study consists of surveys, monitoring and simulations. This enables to determine the major causes of the summer discomfort in field and to propose several passive solutions. These solutions were assessed by simulation using a dynamic simulation tool.