What is it about?
Buildings use massive amounts of energy, but a new BIM-based study shows green roofs and facades can dramatically improve efficiency. Researchers modeled residential buildings in four Brazilian cities, comparing traditional roofs and walls with green alternatives. Combining green roofs and facades cut Energy Use Intensity by up to 16% and Annual Peak Demand by nearly 28%. Even partial green façades benefited from green roofs. The study highlights how smart design and green technologies can help architects and planners make sustainable, energy-saving choices for Brazil’s growing cities (including cities in developing countries).
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Why is it important?
Green roofs and walls aren’t just eco-friendly—they can slash building energy use. This study shows how simple design choices can save money and protect the environment.
Perspectives
With energy bills skyrocketing, expanding our knowledge on efficient building design is crucial; this research is one promising approach.
Dr. Olubimbola Oladimeji
Universidade Federal do Rio de Janeiro
Read the Original
This page is a summary of: BIM-based parametric energy analysis of green building components for the roofs and facades, Next Sustainability, January 2025, Elsevier,
DOI: 10.1016/j.nxsust.2024.100078.
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