Modern Buildings And Its Effects On The Environment

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Buildings are exposed to a significant number of external conditions, such as climate changes along the year. Therefore, they need to be designed to deal with this conditions in order to guarantee a good quality indoor environment, spending the minimum of resources possible. Ralegaonkar and Gupta argues in their article that there are three main ways in which heat can infiltrate in a building, by being carried by the draft (convection), by passing through mass (conduction), and especially by the direct exposure to sun light (radiation) (2010, p. 2240). Furthermore, the authors state that there are several building’s physical parameters that can interfere in these processes and reduce the unwanted heat gain, the most significant ones are: the design and the disposition of windows and others exterior openings of a building; the area and material of walls that receive solar radiation due the site orientation; the use of sun shading mechanisms (2010, p. 2239). However, when the design of a building is being made it is also necessary to analyse the surrounding (building and landscape), and map all the shade that it will provide to the building’s surface. (2010, p. 2240). Still according to this article, passive solar system, the ones that operates without mechanical devices, “is a better alternative for thermal comfort conditioning inside the buildings”. In fact, the rational use of simple passive alternatives can lead to the elimination of more than 60% of thermal discomfort
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