Habitabilidade na autoconstrução: simulações e medições em campo

Abstract

After 10 years of the Technical Assistance Law, the Housing Improvement programs are still incipient and there are several conflicts under the view of minimum habitability standards. The behavior in use of self-constructed units regarding the hygrothermal performance are still not known. The exposure of buildings to the climate agents may jeopardize the durability and the lifespan of the constructive systems that make it up. The auto constructions represents the Brazilian reality, but are, in the meantime, little studied. This article has the goal to observe the hygrothermal behavior of the eastern masonry wall of an auto construction during January, located in Santa Maria-DF. Hygrothermal simulations were developed using the software WUFI Pro, and also field monitoring using a micro controller Arduino Uno connected to DHT22 sensors, positioned in the indoor and outdoor faces. It was observed that the simulation and the monitoring for the outdoor conditions obtained few variations, while in the indoors, the monitoring obtained variations bigger than the simulations. This indicates that the auto constructions are susceptible to hygrothermal variations bigger than the values recommended in national and international standards. This research may contribute to the understanding of a little studied subject, which is the auto constructions and may assist planning decisions in the scope of actions leaded to habitation improvement and technical assistance.