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Changes in Temperature and Moisture Content of an Extensive-Type Green Roof

Author

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  • Anna Baryła

    (Department of Environmental Improvement, Faculty of Civil and Environmental Engineering, Warsaw University of Life Sciences (SGGW), Nowoursynowska 159, 02-776 Warsaw, Poland)

  • Tomasz Gnatowski

    (Department of Environmental Improvement, Faculty of Civil and Environmental Engineering, Warsaw University of Life Sciences (SGGW), Nowoursynowska 159, 02-776 Warsaw, Poland)

  • Agnieszka Karczmarczyk

    (Department of Environmental Improvement, Faculty of Civil and Environmental Engineering, Warsaw University of Life Sciences (SGGW), Nowoursynowska 159, 02-776 Warsaw, Poland)

  • Jan Szatyłowicz

    (Department of Environmental Improvement, Faculty of Civil and Environmental Engineering, Warsaw University of Life Sciences (SGGW), Nowoursynowska 159, 02-776 Warsaw, Poland)

Abstract

Green roofs ought to be perceived as ensuring a wide-ranging contribution to the sustainable urban environment. The aim of the study was; (1) to investigate and analyse the differences in the surface temperature between four models of green roofs of the extensive type and a conventional roof (covered with bitumen) under the conditions of a continental climate; (2) to assess the influence of environmental parameters (climatic water balance, air temperature, relative humidity, moisture content in the profile) on changes in the temperature of the extensive type green roof profile (substrate and vegetation mat). The study (1) was carried out during the period of June–December 2016 using a thermal imaging camera. As a result, the greatest differences in temperature were noted in June and July, with a maximum difference between the temporary surface temperature of a green roof and a conventional roof of up to 24 °C. The (2) study was conducted on a green roof profile with sedum plant vegetation. The measured parameters were: the temperature of the surface, the temperature and humidity at depths of 3 cm and 15 cm, and active radiation in the photosynthesis process (PAR). As the result, the range of daily changes in the surface temperatures and the vegetation mat were higher than the range of changes in the air temperature. Atmospheric precipitation decreased the thermal gradient in the soil, as well as the temperature fluctuations in the course of a day as a result of the increase in humidity following a rainfall. During the summer period, over the course of a day, the surface temperature was 5 °C higher than the air temperature. The largest correlation was obtained between the air temperature and the temperature of the surface as well as the temperature of the structural layers.

Suggested Citation

  • Anna Baryła & Tomasz Gnatowski & Agnieszka Karczmarczyk & Jan Szatyłowicz, 2019. "Changes in Temperature and Moisture Content of an Extensive-Type Green Roof," Sustainability, MDPI, vol. 11(9), pages 1-18, April.
    • Handle: RePEc:gam:jsusta:v:11:y:2019:i:9:p:2498-:d:226830
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    References listed on IDEAS

    as
    1. Agnieszka Karczmarczyk & Anna Baryła & Paweł Kożuchowski, 2017. "Design and Development of Low P-Emission Substrate for the Protection of Urban Water Bodies Collecting Green Roof Runoff," Sustainability, MDPI, vol. 9(10), pages 1-16, October.
    2. Mohamed A. Mattar & A. A. Alazba & Bander Alblewi & Bahram Gharabaghi & Mohamed A. Yassin, 2016. "Evaluating and Calibrating Reference Evapotranspiration Models Using Water Balance under Hyper-Arid Environment," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 30(11), pages 3745-3767, September.
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    Cited by:

    1. Sri Yuliani & Gagoek Hardiman & Erni Setyowati, 2020. "Green-Roof: The Role of Community in the Substitution of Green-Space toward Sustainable Development," Sustainability, MDPI, vol. 12(4), pages 1-14, February.
    2. Mungur, Maheshsingh & Poorun, Yashna & Juggurnath, Diksha & Ruhomally, Yusra Bibi & Rughooputh, Reshma & Dauhoo, Muhammad Zaid & Khoodaruth, Abdel & Shamachurn, Heman & Gooroochurn, Mahendra & Boodia,, 2020. "A numerical and experimental investigation of the effectiveness of green roofs in tropical environments: The case study of Mauritius in mid and late winter," Energy, Elsevier, vol. 202(C).

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