Etiquetagem em edificações: análise de eficiência energética de uma residência unifamiliar de Toledo/PR

Abstract

In the current world scenario in which there is a great demand for operation through the use of energy, the search for energy efficiency measures has been gaining more and more relevance. In the context of civil construction, concepts of efficient buildings are gaining greater credibility, mainly because they consume a large amount of energy. It is estimated that in Brazil, 51% of electricity is required by buildings. In addition, its industry impacts the entire production chain, from the extraction of its inputs, to the social relations that determine the occupation of space, real estate studies and the disposal of its residues. As a result, in 1984 and 1985 the first Brazilian programs aimed at energy efficiency emerged, the Brazilian Labeling Program (PBE) and the National Electric Energy Conservation Program (PROCEL). In which, they were established in order to promote the efficient use of energy in various aspects of the economy, including buildings. In this context, this research aims to assess the level of energy efficiency of an existing single-family building in the city of Toledo/PR, following the parameters determined by PBE Edifica. The Technical Quality Regulation for the Energy Efficiency Level of Residential Buildings (RTQ-R) was used for verification, which qualifies the thermo-energy performance of three building systems: the envelope, water heating and bonuses. After evaluating the current state of the residence under study, it was observed that it presents level D of efficiency, which is one of the worst and lowest according to the RTQ-R. In order to improve this index, improvements were then suggested, easy to be implemented, and the building was reevaluated. Found for energy efficiency level B residence. Therefore, if an eventual renovation is carried out, taking into account the suggested improvement proposals, the energy efficiency of the building can improve. Consequently, the use of electrical energy is reduced and the quality of the built environment improves.