Research on the application of green roof systems in energy-saving design of low-rise public buildings
Journal: Journal of Building Technology DOI: 10.32629/jbt.v7i2.4657
Abstract
Low-rise public buildings have large roof-to-volume ratios, so roof heat and moisture transfer strongly affect comfort and HVAC energy. Using coupled simulations, we evaluate green roofs as an envelope strategy and show reduced summer roof heat flux and peak surface temperature, improving top-floor comfort. We propose an integrated "insulation-waterproofing-drainage-vegetation" assembly and climate-adaptive parameter ranges to balance energy savings, durability, and stormwater performance.
Keywords
green roof; low-rise public buildings; hygrothermal performance; building energy simulation; stormwater retention; integrated roof design
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[2] Sommese F, Diana L. 2025. A holistic framework for the implementation of green roofs on existing buildings: A case study in the Mediterranean climate of Naples. Building and Environment, 274: 112811.
[3] Bevilacqua P. 2021. The effectiveness of green roofs in reducing building energy consumptions across different climates: A summary of literature results. Renewable and Sustainable Energy Reviews, 151.
[4] Yang J, Davidson C, Zhang G. 2021. Evaluation of thermal performance of green roofs via field measurements and hygrothermal simulations. Energy and Buildings, 237.
[5] Porcaro M, et al. 2021. Exploring the reduction of energy demand of a building with an eco-roof under different irrigation strategies. Sustainable Cities and Society, 74: 103229.
[6] Hamed Y, et al. 2021. Building energy comparison for dynamic cool roofs and green roofs under various climates. Solar Energy, 230: 764-778.
[7] Mohsen S, et al. 2022. Sustainable green roofs: A comprehensive review of influential factors. Environmental Science and Pollution Research, 29: 78228–78254.
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