Il ruolo degli spazi collettivi per luoghi di cura sostenibili: corti, atri, porticati

Hospitals have high energy consumptions, more than offices, dwellings and schools and they have been strongly increasing for twenty years. Improvement of their energy efficiency seems to be desirable to save resources and to reduce pollution, above all because of their public exemplarity. Energy consumptions of a hospital are due to instruments and to conditioning, solved by the use of mechanic systems. Many experiences of buildings that exploit natural sources for ventilation, cooling, heating and lighting let bioclimatic strategies to be applicable to sanitary structures, particularly suitable because of their continuing activity, that need constant energy supply. Reducing the use of mechanic systems would result in lower requirements and risks of building related illness, in addition to healthy effects on the patients. To this purpose, bioclimatic role of collective spaces, such as courtyards, halls and porches, appears to be very interesting and, as results from the analysis of historical, modern and contemporary health care buildings, rich of energetic and expressive means.