Avaliação do impacto da escolha dos revestimentos de fachada na emissão incorporada de GEE de edifícios do setor noroeste - Brasília/DF
Keywords:
mudanças climáticas, emissão incorporada de GEE, avaliação do ciclo de vida, fachadas, revestimentoAbstract
The activity of building construction is part responsible for GHG emissions into the atmosphere, so this same activity needs to be aligned with global goals that seek to curb the increase in the earth's temperature. The construction materials specified in the projects cause impacts on the environment from their production to their disposal. Therefore, the use of materials with greater environmental impact increases GHG emissions from the production chain of the construction industry. This study aimed to evaluate the impact of embodied GHG emissions related to the façade covering materials by the methodology of life cycle assessment (LCA) in buildings of the Northwest Sector-DF. In the methodology of the study three typologies were defined, representing the buildings of the implementation stage 01 of the sector, being them 01) square plan, with a projection area of 1,024m2; 02) rectangular plan, with a projection area of 1,000m2; and 03) rectangular plan, with a projection area of 1,500m2. Evaluating only the materials of the facades, it was found that typology 01 reached the value of 109, 34 kgCO2eq./m2 of facade, typology 02 totaled 80.75 kgCO2eq./m2 of facade and typology 03, obtained 76.11 kgCO2eq./m2 of facade. When evaluating only the materials applied in the coatings of the facades it was observed that granite, plaster, ACM, paint and glass were the materials with the greatest impact on the typologies, and in typology 01 the coating material with the greatest impact was granite, totaling 71% contributing to the fact that this typology had the highest impact compared to the others.
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