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The study of the building energy performance is based on simplified procedures that estimates the energy demand using monthly values of environmental parameters. It is well known that it is possible to use advanced dynamic softwares able to analyze the real building’s behavior along time. For this reason in this study a historical building energy retrofit has been performed through a dynamic software considering the influence of different kind of windowed elements on the annual energy demand. Four simulations, taking into account transparent elements characterized by progressively improved properties of thermal transmittance and solar gain factor, have been performed. The results obtained have been analyzed and compared.
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Guattari et al. (2015) studied this question.
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