Life Cycle Assessment of green roof in brazilian social housing

Authors

  • Julia Santiago de Matos Monteiro Lira Federal Institute of Piauí (IFPI). Teresina, PI, Brazil. https://orcid.org/0000-0003-4048-2668
  • Lucas Rosse Caldas Federal University of Rio de Janeiro (UFRJ), Department of Structures. Rio de Janeiro, RJ, Brazil. https://orcid.org/0000-0002-3108-2833
  • Thiago Oliveira Rodrigues Forest Technology and Geoprocessing Foundation (FUNTEC), Brasília, DF, Brazil
  • Rosa Maria Sposto University of Brasilia (UnB), Brasilia, DF, Brazil.

DOI:

https://doi.org/10.5216/reec.v20i1.75734

Keywords:

LCA, Green roof, Conventional roof, Use stage, Building

Abstract

ABSTRACT: The green roof is an old alternative to reduce the effects of heat islands and global warming, providing thermal comfort benefits in buildings. However, aspects related to its environmental performance are still little studied. In this context, the objective of this study was to perform a cradle-to-grave Life Cycle Assessment (LCA) of a Green Roof (GR) compared to a Conventional Roof (CR) for a social interest housing in Brasília. The methodology used for the LCA was done in the software GaBi 6. In the use phase, the electric consumption for the use of artificial conditioning was quantified by the software DesignBuilder, for bioclimatic zone 4. The resulting value was entered into GaBi along with the other data to calculate the impact categories. The use phase had the highest environmental impact value in the categories evaluated. GR was favorable in most categories. The use of ceramic tiles was most responsible for the environmental impacts of the CR. Throughout the cradle-to-grave LCA, the replacement of a conventional roof by a green roof proved to be favorable, contributing to lower environmental impacts, especially considering the impact of use in a housing development, promoting microclimate alteration.

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Author Biographies

Julia Santiago de Matos Monteiro Lira, Federal Institute of Piauí (IFPI). Teresina, PI, Brazil.

Civil Engineering, Federal Institute of Piauí (IFPI). PhD student in Development and Environment at the Federal University of Piauí (UFPI).

Lucas Rosse Caldas, Federal University of Rio de Janeiro (UFRJ), Department of Structures. Rio de Janeiro, RJ, Brazil.

PhD in Civil Engineering. Professor at the Faculty of Architecture and Urbanism of the Federal University of Rio de Janeiro (UFRJ), Department of Structures. Rio de Janeiro, RJ, Brazil.

Thiago Oliveira Rodrigues, Forest Technology and Geoprocessing Foundation (FUNTEC), Brasília, DF, Brazil

PhD in Forestry Engineering, Director of the Forestry Technology and Geoprocessing Foundation – (FUNTEC), Brasília - DF.

Rosa Maria Sposto, University of Brasilia (UnB), Brasilia, DF, Brazil.

Civil Engineer, PhD in Civil Engineering, Professor at the Faculty of Technology, Department of Civil and Environmental Engineering at the University of Brasília (UnB)

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Published

2024-09-16

How to Cite

SANTIAGO DE MATOS MONTEIRO LIRA, J.; ROSSE CALDAS, L.; OLIVEIRA RODRIGUES, T.; SPOSTO, R. M. Life Cycle Assessment of green roof in brazilian social housing. REEC - Revista Eletrônica de Engenharia Civil, Goiânia, v. 20, n. 1, p. 30–46, 2024. DOI: 10.5216/reec.v20i1.75734. Disponível em: https://revistas.ufg.br/reec/article/view/75734. Acesso em: 20 dec. 2024.

Issue

Vol. 20 No. 1 (2024): [REEC] Revista Eletrônica de Engenharia Civil - Vol. 20, n° 1, 2024

Section

Construção Civil

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