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Impact of Green Roofs on Energy Demand for Cooling in Egyptian Buildings

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  • Ayman Ragab

    (Department of Architecture, Faculty of Engineering, Aswan University, Aswan 81542, Egypt)

  • Ahmed Abdelrady

    (Department of Water Management, Delft University of Technology, 2600 GA Delft, The Netherlands)

Abstract

Energy consumption for cooling purposes has increased significantly in recent years, mainly due to population growth, urbanization, and climate change consequences. The situation can be mitigated by passive climate solutions to reduce energy consumption in buildings. This study investigated the effectiveness of the green roof concept in reducing energy demand for cooling in different climatic regions. The impact of several types of green roofing of varying thermal conductivity and soil depth on energy consumption for cooling school buildings in Egypt was examined. In a co-simulation approach, the efficiency of the proposed green roof types was evaluated using the Design-Builder software, and a cost analysis was performed for the best options. The results showed that the proposed green roof types saved between 31.61 and 39.74% of energy, on average. A green roof featuring a roof soil depth of 0.1 m and 0.9 W/m-K thermal conductivity exhibited higher efficiency in reducing energy than the other options tested. The decrease in air temperature due to green roofs in hot arid areas, which exceeded an average of 4 °C, was greater than that in other regions that were not as hot. In conclusion, green roofs were shown to be efficient in reducing energy consumption as compared with traditional roofs, especially in hot arid climates.

Suggested Citation

  • Ayman Ragab & Ahmed Abdelrady, 2020. "Impact of Green Roofs on Energy Demand for Cooling in Egyptian Buildings," Sustainability, MDPI, vol. 12(14), pages 1-13, July.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:14:p:5729-:d:385383
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    1. Babak Raji & Martin J. Tenpierik & Andy Van den Dobbelsteen, 2017. "Early-Stage Design Considerations for the Energy-Efficiency of High-Rise Office Buildings," Sustainability, MDPI, vol. 9(4), pages 1-28, April.
    2. Favoino, Fabio & Overend, Mauro & Jin, Qian, 2015. "The optimal thermo-optical properties and energy saving potential of adaptive glazing technologies," Applied Energy, Elsevier, vol. 156(C), pages 1-15.
    3. Abdul Mujeebu, Muhammad & Ashraf, Noman & Alsuwayigh, Abdulkarim, 2016. "Energy performance and economic viability of nano aerogel glazing and nano vacuum insulation panel in multi-story office building," Energy, Elsevier, vol. 113(C), pages 949-956.
    4. Santamouris, M. & Pavlou, C. & Doukas, P. & Mihalakakou, G. & Synnefa, A. & Hatzibiros, A. & Patargias, P., 2007. "Investigating and analysing the energy and environmental performance of an experimental green roof system installed in a nursery school building in Athens, Greece," Energy, Elsevier, vol. 32(9), pages 1781-1788.
    5. Berardi, Umberto & GhaffarianHoseini, AmirHosein & GhaffarianHoseini, Ali, 2014. "State-of-the-art analysis of the environmental benefits of green roofs," Applied Energy, Elsevier, vol. 115(C), pages 411-428.
    6. Domenico Campisi & Simone Gitto & Donato Morea, 2018. "An Evaluation of Energy and Economic Efficiency in Residential Buildings Sector: A Multi-criteria Analisys on an Italian Case Study," International Journal of Energy Economics and Policy, Econjournals, vol. 8(3), pages 185-196.
    7. Sadineni, Suresh B. & Madala, Srikanth & Boehm, Robert F., 2011. "Passive building energy savings: A review of building envelope components," Renewable and Sustainable Energy Reviews, Elsevier, vol. 15(8), pages 3617-3631.
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    2. Abdelaziz Farouk Mohamed & Mohammed M. Gomaa & Amira Ahmed Amir & Ayman Ragab, 2023. "Energy, Thermal, and Economic Benefits of Aerogel Glazing Systems for Educational Buildings in Hot Arid Climates," Sustainability, MDPI, vol. 15(8), pages 1-19, April.
    3. Hiba Najini & Mutasim Nour & Sulaiman Al-Zuhair & Fadi Ghaith, 2020. "Techno-Economic Analysis of Green Building Codes in United Arab Emirates Based on a Case Study Office Building," Sustainability, MDPI, vol. 12(21), pages 1-22, October.
    4. He, Q. & Tapia, F. & Reith, A., 2023. "Quantifying the influence of nature-based solutions on building cooling and heating energy demand: A climate specific review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 186(C).
    5. Mohamed Hssan Hassan Abdelhafez & Fatmaelzhraa Altaf & Mohammad Alshenaifi & Omar Hamdy & Ayman Ragab, 2022. "Achieving Effective Thermal Performance of Street Canyons in Various Climatic Zones," Sustainability, MDPI, vol. 14(17), pages 1-21, August.
    6. Ahmed Abdelrady & Mohamed Hssan Hassan Abdelhafez & Ayman Ragab, 2021. "Use of Insulation Based on Nanomaterials to Improve Energy Efficiency of Residential Buildings in a Hot Desert Climate," Sustainability, MDPI, vol. 13(9), pages 1-17, May.
    7. Marzouk, Mai A. & Salheen, Mohamed A. & Fischer, Leonie K., 2024. "Towards sustainable urbanization in new cities: Social acceptance and preferences of agricultural and solar energy systems," Technology in Society, Elsevier, vol. 77(C).
    8. Abdul Mujeebu, Muhammad & Bano, Farheen, 2022. "Integration of passive energy conservation measures in a detached residential building design in warm humid climate," Energy, Elsevier, vol. 255(C).

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