2 ECO-DESIGN THE ECOLOGICAL PROJECT: GENERAL PRINCIPLES Answer these questions. a. What do you think a eco-house is? b. Can you think of any ecological building materials? c. In your opinion, what are the advantages of living in an eco-house? Creating healthy buildings, which have little ecological impact has always been the objective of architecture. Eco-architecture is returning to those old objectives. The reason for this is the ecological emergency and an increasing preoccupation with health which started in the sixties. Most of us spend 90% of our time within a closed environment so incorrect design and the presence of toxic elements found in some materials can be the cause of illness and common pathologies. Indoor pollution has various sources. Materials used in constructing the building and furnishing may release harmful substances. Excessive acclimatization, humidity or dryness of the air, illumination without contrast or too strong, electrical fields by appliances, acoustic pollution and vibrations are just some examples of how living inside a house may affect our health. The building has to be designed to last and its function is to create comfort. It should also be made not to waste energy, but to recuperate and regenerate it. An ecological building is a quality building, created without excessive attention to saving money; on the contrary, its materials last in time reducing the costs of maintenance. The general standards of ecological design are related to a complex reality, so it is almost impossible to satisfy them all. Depending on the context and possibilities, the goal is to come as close as possible to the main objectives, which are to create harmony between the building itself and the place where it stands, to save energy and to guarantee the health of its inhabitants. These may be taken as guidelines: mainly utilize materials available in large quantities in loco ; unrefined, which need little manufacturing (to reduce energy waste), and not harmful to the human health; guarantee the buildings flexibility for possible future changes; try to design an efficient energy saving system (thermal isolation, natural lighting, etc.); depending on the local climate, use technological innovations such as solar panels and natural temperature reduction devices; guarantee the durability of the construction; use materials which can be recycled and re-used once the building is demolished; provide the structures with natural beauty and sensual comfort (sufficient lighting, natural colours, etc.); use green as an element of the design. to affect: influenzare furnishing: arredamento harmful: dannoso illness: malattia in loco: sul posto source: origine, causa unrefined: non raffinato, greggio waste: spreco 54 Module 2 The Supertrees in the Gardens by the bay (Singapore)