Avaliação da análise de ciclo de vida de uma construção carbono zero: caso de uma edificação multiresidencial em Curitiba, Paraná

Abstract

Construction companies, by adopting the Carbon Zero environmental certification, commit to neutralizing the carbon emissions generated during the construction of their buildings, which are estimated during the project phase but not re-evaluated after the completion of the work. This study aims to assess the compliance of the Carbon Zero certification for a multi-residential building located in Curitiba, with an emphasis on the execution of ceramic block masonry. To achieve this, the methodology adopted in this study correlates the estimated carbon footprint with the actual carbon mass associated with the material used in the building. By analyzing the quantity of ceramic blocks purchased during the construction, an increase in the material volume was identified, attributed to factors such as project incompatibilities, rework, and deficiencies in construction management. However, it was also found that additional carbon credits were purchased, which were used to neutralize the excess emissions generated during the construction process. This practice should be regulated to prevent construction companies from engaging in the abusive purchase of carbon credits as an alternative to compensating for emissions, instead of implementing effective measures to reduce the environmental impact of construction processes.