Desempenho térmico de edificações multifamiliares de interesse social em conjuntos habitacionais na cidade de Santa Maria - RS

Abstract

In Brazil, millions of families are excluded from access to decent housing. Besides the scarcity of social housing, the low quality of buildings shows the importance of reviewing standards for new projects that are being built. The objective of this study is to evaluate the thermal performance of buildings constructed under different policies of social housing in four and five story multi-family housing complexes in the city of Santa Maria - RS. Data collection and analysis of building and architectural characteristics of housing complex buildings was made through in loco visits and consultation of architectural projects as well as descriptive memorandums. The thermal capacity of buildings, as well as the occurrence of natural ventilation of autonomous units were factors considered in the selection of buildings that were monitered during a certain period in the summer and in the winter. The analysis of external and internal temperature together with the different building characteristics allowed us to conclude that high thermal capacity together with controlled ventilation and good sealing of the wrapping were determining factors in the thermal performance of the buildings. A good isolation of the roof as important or more important than solar orientation. The results present a realistic diagnosis, which may serve as a base for other studies aiming to improve thermal performance in future social housing programs in Santa Maria and the surrounding area.