Sustentabilidade e otimização de recursos em habitação social: análise de tecnologias para eficiência energética e hídrica

Abstract

The construction of more efficient houses is essential to meet the goals defined by the various Conferences on Environment and Sustainability. Planning residences aiming at lower energy consumption and greater use of available resources, in addition to being environmentally necessary, can make buildings more profitable. In this context, the use of technologies in civil construction such as pre-molded plates, photovoltaic panels, thermal solar energy use and water reuse are used at work as alternatives to solve these environmental, economic and technical challenges. The study consists to analyze of a 60m² house, accommodating 4 people, including the use of the technologies mentioned above and a budget limit that fits the “House Green and Yellow” program, with the purpose of technical and economic comparison with conventional civil construction. The results obtained show the overall construction value 12% higher than that of conventional construction, however the efficient house already comes with technologies that allow a financial gain over the years. Bear in mind that the value of electricity and the value of water from the concessionaire will be well below that of the traditional residence. However, greater gain occurs in the environment, as the technologies implemented drastically mitigate water and energy consumption and help the energy matrix to decarbonize. When analyzing the water involved in the construction process, a difference of 16 liters is noticed in relation to the traditional method.