The Effect of Green Roofs and Green Façades in the Pedestrian Thermal Comfort of a Mediterranean Urban Residential Area
The present study investigated the cooling effect of extensive green roofs and green façades, at the pedestrian level, of a Mediterranean densely populated neighborhood. The ENVI-met environmental model was employed to simulate the microclimatic environment on a typical summer day. Thermal condition...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-09-01
|
| Series: | Atmosphere |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4433/14/10/1512 |
| _version_ | 1827721727468109824 |
|---|---|
| author | Areti Tseliou Emmanouil Melas Athina Mela Ioannis Tsiros Efthimios Zervas |
| author_facet | Areti Tseliou Emmanouil Melas Athina Mela Ioannis Tsiros Efthimios Zervas |
| author_sort | Areti Tseliou |
| collection | DOAJ |
| description | The present study investigated the cooling effect of extensive green roofs and green façades, at the pedestrian level, of a Mediterranean densely populated neighborhood. The ENVI-met environmental model was employed to simulate the microclimatic environment on a typical summer day. Thermal conditions of the study area were evaluated based on air temperature and the Mediterranean thermal stress scale of UTCI (Universal Thermal Climate Index). Three mitigation strategies were developed to ameliorate the thermal conditions in the examined area focusing on the efficacy of green façades, green roofs, and the synergetic effect of the green façade and green roof. The mitigation strategies’ performance was evaluated in characteristic design layouts of the study area, namely the following: a typical Mediterranean square, a church with a churchyard, an avenue, NS and EW street orientations, and courtyards. Results showed that compared to the existing configuration, the synergetic effect of the green façade and green roof achieved the greatest amelioration of the thermal conditions during the hottest hours of the day (12:00–18:00) since it produced an average Tair reduction of up to 0.7 °C and a UTCI reduction of 1.6 °C (both in the courtyards design layout). Among the examined design layouts, the courtyards produced the greatest reductions in air temperature and UTCI, whereas the EW streets were the lowest. |
| first_indexed | 2024-03-10T21:27:04Z |
| format | Article |
| id | doaj.art-0f4a17081b8e4f81b1fc06978b883187 |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-10T21:27:04Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-0f4a17081b8e4f81b1fc06978b8831872023-11-19T15:36:03ZengMDPI AGAtmosphere2073-44332023-09-011410151210.3390/atmos14101512The Effect of Green Roofs and Green Façades in the Pedestrian Thermal Comfort of a Mediterranean Urban Residential AreaAreti Tseliou0Emmanouil Melas1Athina Mela2Ioannis Tsiros3Efthimios Zervas4Laboratory of General and Agricultural Meteorology, Agricultural University of Athens, Iera Odos 75, 11855 Athens, GreeceLaboratory of General and Agricultural Meteorology, Agricultural University of Athens, Iera Odos 75, 11855 Athens, GreeceLaboratory of Urban Planning and Architecture, Department of Civil Engineering, School of Engineering, University of West Attica, 250 Thivon & P.Ralli Street, 12241 Athens, GreeceLaboratory of General and Agricultural Meteorology, Agricultural University of Athens, Iera Odos 75, 11855 Athens, GreeceLaboratory of Technology and Policy of Energy and the Environment, School of Applied Arts and Sustainable Design, Hellenic Open University, Parodos Aristotelous 18, 26335 Patra, GreeceThe present study investigated the cooling effect of extensive green roofs and green façades, at the pedestrian level, of a Mediterranean densely populated neighborhood. The ENVI-met environmental model was employed to simulate the microclimatic environment on a typical summer day. Thermal conditions of the study area were evaluated based on air temperature and the Mediterranean thermal stress scale of UTCI (Universal Thermal Climate Index). Three mitigation strategies were developed to ameliorate the thermal conditions in the examined area focusing on the efficacy of green façades, green roofs, and the synergetic effect of the green façade and green roof. The mitigation strategies’ performance was evaluated in characteristic design layouts of the study area, namely the following: a typical Mediterranean square, a church with a churchyard, an avenue, NS and EW street orientations, and courtyards. Results showed that compared to the existing configuration, the synergetic effect of the green façade and green roof achieved the greatest amelioration of the thermal conditions during the hottest hours of the day (12:00–18:00) since it produced an average Tair reduction of up to 0.7 °C and a UTCI reduction of 1.6 °C (both in the courtyards design layout). Among the examined design layouts, the courtyards produced the greatest reductions in air temperature and UTCI, whereas the EW streets were the lowest.https://www.mdpi.com/2073-4433/14/10/1512thermal comforturban designmitigation strategiesenvironmental simulationbioclimatic indices |
| spellingShingle | Areti Tseliou Emmanouil Melas Athina Mela Ioannis Tsiros Efthimios Zervas The Effect of Green Roofs and Green Façades in the Pedestrian Thermal Comfort of a Mediterranean Urban Residential Area Atmosphere thermal comfort urban design mitigation strategies environmental simulation bioclimatic indices |
| title | The Effect of Green Roofs and Green Façades in the Pedestrian Thermal Comfort of a Mediterranean Urban Residential Area |
| title_full | The Effect of Green Roofs and Green Façades in the Pedestrian Thermal Comfort of a Mediterranean Urban Residential Area |
| title_fullStr | The Effect of Green Roofs and Green Façades in the Pedestrian Thermal Comfort of a Mediterranean Urban Residential Area |
| title_full_unstemmed | The Effect of Green Roofs and Green Façades in the Pedestrian Thermal Comfort of a Mediterranean Urban Residential Area |
| title_short | The Effect of Green Roofs and Green Façades in the Pedestrian Thermal Comfort of a Mediterranean Urban Residential Area |
| title_sort | effect of green roofs and green facades in the pedestrian thermal comfort of a mediterranean urban residential area |
| topic | thermal comfort urban design mitigation strategies environmental simulation bioclimatic indices |
| url | https://www.mdpi.com/2073-4433/14/10/1512 |
| work_keys_str_mv | AT aretitseliou theeffectofgreenroofsandgreenfacadesinthepedestrianthermalcomfortofamediterraneanurbanresidentialarea AT emmanouilmelas theeffectofgreenroofsandgreenfacadesinthepedestrianthermalcomfortofamediterraneanurbanresidentialarea AT athinamela theeffectofgreenroofsandgreenfacadesinthepedestrianthermalcomfortofamediterraneanurbanresidentialarea AT ioannistsiros theeffectofgreenroofsandgreenfacadesinthepedestrianthermalcomfortofamediterraneanurbanresidentialarea AT efthimioszervas theeffectofgreenroofsandgreenfacadesinthepedestrianthermalcomfortofamediterraneanurbanresidentialarea AT aretitseliou effectofgreenroofsandgreenfacadesinthepedestrianthermalcomfortofamediterraneanurbanresidentialarea AT emmanouilmelas effectofgreenroofsandgreenfacadesinthepedestrianthermalcomfortofamediterraneanurbanresidentialarea AT athinamela effectofgreenroofsandgreenfacadesinthepedestrianthermalcomfortofamediterraneanurbanresidentialarea AT ioannistsiros effectofgreenroofsandgreenfacadesinthepedestrianthermalcomfortofamediterraneanurbanresidentialarea AT efthimioszervas effectofgreenroofsandgreenfacadesinthepedestrianthermalcomfortofamediterraneanurbanresidentialarea |