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Kokkinaki, ánna. Thermal survey and testing of the envelope of an existing building: defects in the facades and suggested measures for improvement. In: CONFERENCE ON PASSIVE AND LOW ENERGY ARCHITECTURE, 20., 2003, Santiago do Chile. Anais... Santiago do Chile, 2003.
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Abstract

A great part of the existing building stock in Greece shows a poor thermal performance and a high energy consumption. This happens particularly in buildings constructed before the application of the ¡°Greek Building Regulation for Thermal Insulation¡±, which are mainly buildings without thermal insulation, or with a low thermal protection. Taking into consideration the fact that the annual heating requirement of a house -according to today¡¯s standard regulations- should be reduced so that the annual heating demand is Q'' ¡Ü100 KWh/m 2 a, it is essential for the contemporary saving energy policy to turn not only to the design and construction of new energy efficient buildings, but also to the renovation of older buildings, in order to reduce their energy consumption. According to the aforementioned, as well as due to the imminent reformation of the Greek Thermal Insulation Regulations (2004), this paper presents the energy upgrading of an existing house (year of construction 1979), as well as the Thermal Test process along with the proposed solutions. The conducted thermal control process showed the high energy demand (Q>150 KWh/m 2 a) and the deficiency of the house¡¯s thermal insulation. The upgrading proposals and the following thermal control with the new data, showed the house¡¯s energy upgrading potential (Q .110 KWh/m 2 a), which was achieved with feasible, selective interventions, on the building envelope¡¯s elements.
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