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The Role of the Extensive Green Roofs on Decreasing Building Energy Consumption in the Mediterranean Climate

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  • Mario Maiolo

    (Department of Environment Engineering and the Territory and Chemical Engineering, University of Calabria, 87036 Rende, Italy)

  • Behrouz Pirouz

    (Department of Mechanical, Energy and Management Engineering, University of Calabria, 87036 Rende, Italy)

  • Roberto Bruno

    (Department of Mechanical, Energy and Management Engineering, University of Calabria, 87036 Rende, Italy)

  • Stefania Anna Palermo

    (Department of Civil Engineering, University of Calabria, 87036 Rende, Italy)

  • Natale Arcuri

    (Department of Mechanical, Energy and Management Engineering, University of Calabria, 87036 Rende, Italy)

  • Patrizia Piro

    (Department of Civil Engineering, University of Calabria, 87036 Rende, Italy)

Abstract

Buildings portion in global energy consumption is 40%, and in the building envelope, the roof is a crucial point for improving indoor temperature, especially in the last and second last floors. Studies show that green roofs can be applied to moderate roof temperature and affect the indoor temperature in summer and winter. However, the performance of green roofs depends on several parameters such as climate, irrigation, layer materials, and thickness. In this context, the present research deals with a comprehensive experimental analysis of different thermal impacts of green roofs in summer and winter in a Mediterranean climate. Measurements carried out in one year in three different types of green roofs with different thicknesses, layers, and with and without the insulation layer. The analysis determined the possible period that indoor cooling or heating might be required with and without green roofs and demonstrated the positive impact of green roofs in moderating the roof temperature and temperature fluctuations, which in summer was remarkable. In conclusion, since in the Mediterranean climate, the thermal differences between green roofs and conventional roofs in summer are much higher than winter, it seems that the green roof without an insulation layer would show better performance.

Suggested Citation

  • Mario Maiolo & Behrouz Pirouz & Roberto Bruno & Stefania Anna Palermo & Natale Arcuri & Patrizia Piro, 2020. "The Role of the Extensive Green Roofs on Decreasing Building Energy Consumption in the Mediterranean Climate," Sustainability, MDPI, vol. 12(1), pages 1-13, January.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:1:p:359-:d:304388
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    References listed on IDEAS

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    Cited by:

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    2. Weiwei Xiong & Juan Li & Hankun Wang & Yongbo Wu & Dongchang Li & Jianhui Xue, 2023. "Biochar Addition and the Runoff Quality of Newly Constructed Green Roofs: A Field Study," Sustainability, MDPI, vol. 15(5), pages 1-13, February.
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    7. María J. Ruá & Ángel M. Pitarch & Inés Arín & Lucía Reig, 2024. "A Roof Refurbishment Strategy to Improve the Sustainability of Building Stock: A Case Study," Sustainability, MDPI, vol. 16(5), pages 1-18, February.
    8. Piero Bevilacqua & Stefania Perrella & Daniela Cirone & Roberto Bruno & Natale Arcuri, 2021. "Efficiency Improvement of Photovoltaic Modules via Back Surface Cooling," Energies, MDPI, vol. 14(4), pages 1-18, February.
    9. Bevilacqua, Piero, 2021. "The effectiveness of green roofs in reducing building energy consumptions across different climates. A summary of literature results," Renewable and Sustainable Energy Reviews, Elsevier, vol. 151(C).
    10. Giovanni Santi & Angelo Bertolazzi & Emanuele Leporelli & Umberto Turrini & Giorgio Croatto, 2020. "Green Systems Integrated to the Building Envelope: Strategies and Technical Solution for the Italian Case," Sustainability, MDPI, vol. 12(11), pages 1-18, June.
    11. Fabiana Frota de Albuquerque Landi & Claudia Fabiani & Anna Laura Pisello, 2021. "Experimental Winter Monitoring of a Light-Weight Green Roof Assembly for Building Retrofit," Sustainability, MDPI, vol. 13(9), pages 1-20, April.
    12. Bin Li & Weihong Guo & Xiao Liu & Yuqing Zhang & Peter John Russell & Marc Aurel Schnabel, 2021. "Sustainable Passive Design for Building Performance of Healthy Built Environment in the Lingnan Area," Sustainability, MDPI, vol. 13(16), pages 1-22, August.
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    14. Behrouz Pirouz & Stefania Anna Palermo & Mario Maiolo & Natale Arcuri & Patrizia Piro, 2020. "Decreasing Water Footprint of Electricity and Heat by Extensive Green Roofs: Case of Southern Italy," Sustainability, MDPI, vol. 12(23), pages 1-16, December.
    15. Bin Chang & Yuexi Dang & Xilian Luo & Chuck Wah Yu & Zhaolin Gu, 2020. "Sustainability of Evaporative Cooling System for Environment Control for Preservation of Unearthed Historical Sites within Archaeological Museums in China," Sustainability, MDPI, vol. 12(23), pages 1-16, November.
    16. Siwei Chen & Zhonghua Gou, 2022. "An Investigation of Green Roof Spatial Distribution and Incentive Policies Using Green Buildings as a Benchmark," Land, MDPI, vol. 11(11), pages 1-23, November.
    17. Perry C. Y. Liu & Huai-Wei Lo & James J. H. Liou, 2020. "A Combination of DEMATEL and BWM-Based ANP Methods for Exploring the Green Building Rating System in Taiwan," Sustainability, MDPI, vol. 12(8), pages 1-19, April.
    18. Sinem Yıldırım & Çimen Özburak & Özge Özden, 2023. "Green Roofs, Vegetation Types, Impact on the Thermal Effectiveness: An Experimental Study in Cyprus," Sustainability, MDPI, vol. 15(3), pages 1-19, February.
    19. Dimitris Al. Katsaprakakis & Georgios Zidianakis & Yiannis Yiannakoudakis & Evaggelos Manioudakis & Irini Dakanali & Spyros Kanouras, 2020. "Working on Buildings’ Energy Performance Upgrade in Mediterranean Climate," Energies, MDPI, vol. 13(9), pages 1-28, May.
    20. Elena Giacomello & Jacopo Gaspari, 2021. "Hydrologic Performance of an Extensive Green Roof under Intense Rain Events: Results from a Rain-Chamber Simulation," Sustainability, MDPI, vol. 13(6), pages 1-23, March.
    21. Jiansheng Wu & Si Li & Nan Shen & Yuhao Zhao & Hongyi Cui, 2020. "Construction of Cooling Corridors with Multiscenarios on Urban Scale: A Case Study of Shenzhen," Sustainability, MDPI, vol. 12(15), pages 1-19, July.
    22. Behrouz Pirouz & Sina Shaffiee Haghshenas & Behzad Pirouz & Sami Shaffiee Haghshenas & Patrizia Piro, 2020. "Development of an Assessment Method for Investigating the Impact of Climate and Urban Parameters in Confirmed Cases of COVID-19: A New Challenge in Sustainable Development," IJERPH, MDPI, vol. 17(8), pages 1-17, April.
    23. Ángel Pitarch & María José Ruá & Lucía Reig & Inés Arín, 2020. "Contribution of Roof Refurbishment to Urban Sustainability," Sustainability, MDPI, vol. 12(19), pages 1-20, October.
    24. Behrouz Pirouz & Natale Arcuri & Behzad Pirouz & Stefania Anna Palermo & Michele Turco & Mario Maiolo, 2020. "Development of an Assessment Method for Evaluation of Sustainable Factories," Sustainability, MDPI, vol. 12(5), pages 1-15, February.

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