Comparativo entre os sistemas de alvenaria de vedação de bloco cerâmico e light wood frame: desempenho térmico, acústico e impacto ambiental

Abstract

This paper has the objective of presenting that, despite the notorious benefits of Civil Engineering in the national conjuncture to maintain the conditions required for the overall well-being of the population, contributing to the reduction of the unemployment rate, guaranteeing and increasing the family income, the sector faces some significant stalemates. Such impasses go beyond financial issues and reach on questions such as environmental degradation, pollution and waste of non-renewable natural resources. In this context, it proposes to study the feasibility of implementing sustainable building strategies. Therefore, this study presents a comparison between the traditional Brazilian construction method, of masonry, and the American method, of wood construction (Wood Frame), in order to determine the environmental viability of using Wood Frame in Brazil. This comparison is made by means of literature review and the terms of the Brazilian Association of Technical Standards (ABNT), defined in the items of “NBR 15.575: Thermal performance, acoustic performance and environmental impact”. The wood frame generated a much lower environmental impact than masonry. No material met all the thermal and acoustic performance items, but the results were very close, making it possible to use complementary alternatives for feasibility.