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Experimental study of the urban microclimate mitigation potential of green roofs and green walls in street canyons

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  • Rabah Djedjig
  • Emmanuel Bozonnet
  • Rafik Belarbi

Abstract

This paper presents the design and the results of a reduced-scale experimental bench to study the effect of green roofs and green facades on local urban microclimate. An analysis of experimental data was carried out on three street canyons: one reference street, one street between two buildings with green roofs and one with a green wall to the west. The results show a hygrothermal effect of green envelopes on buildings on urban heat island mitigation. In the detailed analysis of these green coating techniques, we highlighted that green facades modify strongly the radiative balance of the street and improve the hygrothermal comfort in urban canyons through reducing the overheating in the street in hot summer days.

Suggested Citation

  • Rabah Djedjig & Emmanuel Bozonnet & Rafik Belarbi, 2015. "Experimental study of the urban microclimate mitigation potential of green roofs and green walls in street canyons," International Journal of Low-Carbon Technologies, Oxford University Press, vol. 10(1), pages 34-44.
    • Handle: RePEc:oup:ijlctc:v:10:y:2015:i:1:p:34-44.
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    File URL: http://hdl.handle.net/10.1093/ijlct/ctt019
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    Cited by:

    1. Anna Laura Pisello & Maria Saliari & Konstantina Vasilakopoulou & Shamila Hadad & Mattheos Santamouris, 2018. "Facing the urban overheating: Recent developments. Mitigation potential and sensitivity of the main technologies," Wiley Interdisciplinary Reviews: Energy and Environment, Wiley Blackwell, vol. 7(4), July.
    2. Susca, T. & Zanghirella, F. & Colasuonno, L. & Del Fatto, V., 2022. "Effect of green wall installation on urban heat island and building energy use: A climate-informed systematic literature review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 159(C).

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