DESEMPENHO TERMOENERGÉTICO DE EDIFICAÇÕES MULTIFAMILIARES EM WOOD FRAME

Abstract

In the context of technological innovations, four-storey residential developments has been carried out using the construction system in wood frame. In this context, the current work aims to analyze the thermoenergetic performance of multifamily buildings constructed in wood frame, having as reference the construction system in conventional masonry of ceramic bricks. The methodology consisted of computer simulations with the EnergyPlus software by following the procedure described in the Technical Quality Regulation for the Energy Efficiency Level of Residential Buildings (RTQ-R). Considering as object of study one of the bedrooms of a residential apartment in wood frame, variations were made in the housing model in order to represent different possibilities in multifamily buildings, according to the floor and solar direction. The simulations were performed to the climates of São Paulo and Belém. It was possible to diagnose that the ground contact had a positive influence on the building in light system, causing, in both climates, the best levels of efficiency were generated on the ground floor. Nevertheless, the dark color of the tile used in the roofing contributed negatively to the performance of the bedroom located on the last floor. Already with a low solar absorptance roof, the top floor had superior performance than intermediate floor in Belém. Furthermore, the east and west orientations also gave unsatisfactory results to the building, demonstrating the need for the incorporation of shading elements in the openings of envelope with light systems, mainly. In general, it was concluded that the wood frame construction system obtained results of efficiency level as satisfactory as conventional masonry, fact that supports even more to its use in Brazil, since it offers benefits such as reduction of CO2 emissions, work time and waste of materials.