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Energies 2016, 9(1), 32;

Direct and Indirect Impacts of Vegetation on Building Comfort: A Comparative Study of Lawns, Green Walls and Green Roofs

1,2,†,* and 2,3,†
L'Université Nantes Angers Le Mans, ensa Nantes, UMR CNRS 1563, Centre de REcherche Nantais Architecture Urbanité, 6 quai F. Mitterrand, Nantes 44000, France
Institut de Recherche en Sciences et Techniques de la Ville, FR CNRS 2488, 1 rue de La Noé, Nantes 44000, France
Laboratoire des Sciences de l'Ingénieur pour l'Environnement, Université de La Rochelle, UMR CNRS 7356, Avenue M. Crépeau, 17042 La Rochelle Cedex 1, France
These authors contributed equally to this work.
Author to whom correspondence should be addressed.
Academic Editor: Nyuk Hien Wong
Received: 4 November 2015 / Revised: 15 December 2015 / Accepted: 23 December 2015 / Published: 7 January 2016
(This article belongs to the Special Issue Energy Efficient Building Design 2016)
Full-Text   |   PDF [7681 KB, uploaded 7 January 2016]   |  


Following development and validation of the SOLENE-microclimat tool, the underlying model was used to compare the impacts of various “greening strategies” on buildings’ summer energy consumption and indoor comfort. This study distinguishes between direct and indirect impacts by successively implementing the test strategies on both the studied building and surrounding ones; it also considers insulated vs. non-insulated buildings. Findings indicate that green walls have a direct effect on indoor comfort throughout the entire building, whereas the effect of green roofs is apparently primarily confined to the upper floor. Moreover, the indirect effect of a green wall is greater, mainly due to the drop in infrared emissions resulting from a lower surface temperature. It has also been proven that the indirect effects of green walls and surrounding lawns can help reduce the loads acting on a non-insulated building. View Full-Text
Keywords: adaptive comfort; urban climate; lawn; building simulation; SOLENE-microclimat adaptive comfort; urban climate; lawn; building simulation; SOLENE-microclimat

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Malys, L.; Musy, M.; Inard, C. Direct and Indirect Impacts of Vegetation on Building Comfort: A Comparative Study of Lawns, Green Walls and Green Roofs. Energies 2016, 9, 32.

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