Impact of Cool Roofs on CO₂ Emissions Reduction in Single-Family Homes: A Case Study in Recife/PE and Picos/PI

Authors

DOI:

https://doi.org/10.46421/encacelacac.v18i1.7185

Keywords:

Energy efficiency, Residential buildings

Abstract

Cool roofs are effective strategies for reducing energy consumption, optimizing thermal comfort, and mitigating CO₂ emissions. This article aims to analyze the thermoenergetic impacts of using cool roofs in the roofing system of low-income single-family housing in Recife/PE and Picos/PI. Simulated scenarios included cool roofs (solar absorptance of 0.25), degraded cool roofs (solar absorptance of 0.42), and standard roofs (solar absorptance of 0.65), considering variations in occupancy profile, user behavior, and roof system insulation. The results indicated that cool roofs with low insulation show higher efficiency in terms of household energy consumption and CO₂ emissions. It is concluded that the combination of passive and active strategies is an effective alternative for reducing energy consumption and CO₂ emissions in single-family buildings located in the climatic context of Recife/PE and Picos/PI.

Author Biographies

Matheus Mendonça Barbosa, Federal University of Santa Catarina

Civil Engineer from the Catholic University of Pernambuco (2021). Master's degree in Civil Engineering from the Federal University of Santa Catarina. Experienced in civil engineering, with an emphasis on thermo-energy analysis of buildings, mainly working on the evaluation of building projects regarding thermal performance requirements, in accordance with ABNT NBR 15575, as well as construction materials and innovative systems (PBQP-H).

Deivis Luis Marinoski, Federal University of Santa Catarina

Civil Engineer graduated from UFSC (2002), holding a Master's degree (2005), a Ph.D. (2010), and a Postdoctoral degree (2013). He has been a professor at the Department of Design and Graphic Expression (EGR/UFSC) since 2013 and a professor in the Graduate Program in Civil Engineering (PPGEC/UFSC) since 2017. He served as a substitute professor in the Department of Architecture and Urbanism (ARQ/UFSC) in 2011 and 2012. He held the position of deputy head of the Department of Design and Graphic Expression (EGR/UFSC) from 2019 to 2022. Currently, he also serves as the faculty representative on the Undergraduate Program Board of the Department of Civil Engineering (ECV/UFSC) and collaborates on projects developed by LabEEE (Laboratory for Energy Efficiency in Buildings) and CB3E (Brazilian Center for Energy Efficiency in Buildings). He has experience in teaching, research, and extension activities in the field of civil construction, with an emphasis on the following topics: energy efficiency, heat transfer, thermal properties of materials, environmental comfort, construction processes, building installations, sustainability, and technical drawing.

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Published

2025-08-16

How to Cite

BARBOSA, Matheus Mendonça; LUIS MARINOSKI, Deivis. Impact of Cool Roofs on CO₂ Emissions Reduction in Single-Family Homes: A Case Study in Recife/PE and Picos/PI. In: ENCONTRO NACIONAL DE CONFORTO NO AMBIENTE CONSTRUÍDO, 18., 2025. Anais [...]. [S. l.], 2025. DOI: 10.46421/encacelacac.v18i1.7185. Disponível em: https://eventos.antac.org.br/index.php/encac/article/view/7185. Acesso em: 3 may. 2026.

Issue

Vol. 18 (2025): ENCAC/ELACAC

Section

5. Eficiência Energética

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