Sistema construtivo convencional e sistema construtivo sustentável para edificação de uso misto: uma análise de viabilidade econômica

Abstract

The growth of civil construction and the development of new technologies generate a great demand for more efficient construction systems, which offer greater productivity, thermal and acoustic comfort, which generate less waste and which have a greater cost-benefit ratio. The concern with the increase in energy demand and the impact that such increase generates on the environment, makes more researches related to renewable and clean energies to be carried out, such as studies on wind energy, solar energy and other similar ones. Based on these assumptions, the present work sought to study two constructive methods, namely, the conventional method composed of a reticulated structure in reinforced concrete using a ceramic block for sealing, and the Insulated Concret Forms (ICF) method, which uses Expanded Polystyrene (EPS) in form. of blocks that fit together similarly to lego pieces. In addition, together with the EPS blocks, the use of photovoltaic panels was evaluated, using as an example a mixed-use building in the city of Primavera do Leste. Thus, the advantages, disadvantages and data regarding the costs of the technologies and the respective studies using the Net Present Value (NPV) were raised. It was demonstrated that the use of the ICF constructive system together with the photovoltaic panels is viable, being more efficient than the conventional system in relation to speed, economy and environmental impact, bringing benefits that extend in the long term.