Comparativo de custos entre os sistemas construtivos com toras roliças de madeira e alvenaria convencional estrutural utilizando resíduos de laminação

Abstract

Considering the forestry potential in the state of Mato Grosso, the growth of structural elements in wood, can become a trend for the region. The construction with roundwood logs is a sustainable alternative for the future of construction. This study aimed to carry out a comparative study of a Construction System with logs plump Rolling residue with a Constructive System Conventional Structural Building (CSCSB) to popular standard houses of 42 square meters. For comparison study, budget spreadsheets were assembled. These spreadsheets were based on the National System of Costs Survey and Indexes of Construction (SINAPI) and the Price Composition Table for Budget (TCPO). With these databases, it has been possible to reach an estimated value for the two systems and calculate the time spent by hand labor. They were considered financial ratios to make a study of feasibility Technical and Economic. The results showed that the CSCSB achieved a value of R$ 77,900.65 and a monthly IRR of 8.61%, compared to R$ 82,213.36 and monthly IRR of 6.83% for the Constructive System Logs (CSL). However, the NPV SPACE presents R$118.17 less, and an income of R$ 4,132.71 less than the CSL. The CSL becomes a viable option because the cost figures and income are different and distinct periods. From the moment in which there is the field of this technology this system was consolidated on the market.