Life cycle energy assessment and carbon dioxide emissions of wall systems for rural houses

Abstract Wall systems have a wide range of embodied energy due to the diversity materials available. This paper analyzes expenditure and carbon dioxide emissions in internal external wall (IEWS) rural residence social interest Cascavel, state Paraná, Brazil. The methodology proposed by NBR ISO 14040 was used perform life-cycle assessment (LCEA) (LCCO2A) these systems. Four scenarios were considered: reinforced concrete structure ceramic blocks system, load-bearing masonry with blocks, steel framing walls molded on site. As result, it found that is possible reduce consumption up 25% opting for In regards CO2 emission, verified difference even greater, being able almost 32% when this same scenario.