Abstract
Green roofs are complex technology systems, adopting a vegetation layer on the outermost surface of the building shell. A proper design implement environmental and energy benefits. Green roof are aimed to reduce roof temperature and thus the summer solar gains, without worsening the winter energy performance. Most studies evaluating green roof performance have been conducted in warmer climates. There are very limited studies of green roofs in cold climate. Some research has investigated the thermal effect of the snow layer on green roof. But no study has so far evaluated the energy performance of green roof in sub-arctic climate. This study evaluates the heat flow and thermal effect on a green roof situated on a passive house building in the sub-arctic town Kiruna, Sweden for a period from 25th of October—4th of January. The ongoing measurements of temperature and heat flux is done on an extensive green roof and compared to the same roof covered solely by a roofing felt layer. The fluctuation in temperature was consistently higher for the roof with the roofing felt layer than for the green roof. But the surface temperature of both roofs was getting more and more align as the roofs are covered by snow during November and December. However during December month the green roof had a higher heat flux out of the building compared to the black roof.
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References
J. Mentens, D. Raes, M. Hermy, Green roofs as a tool for solving the rainwater runoff problem in the urbanized 21st century? Landscape Urban Plann. 77, 217–226 (2006)
R. Fioretti, A. Palla, L.G. Lanza, P. Principi, Green roof energy and water related performance in the Mediterranean climate. Build. Environ. 45, 1890–1904 (2010)
J.C. Berndtsson, L. Bengtsson, K. Jinno, Runoff water quality from intensive and extensive vegetated roofs. Ecol. Eng. 35, 369–380 (2009)
J. Yang, Q. Yu, P. Gong, Quantifying air pollution removal by green roofs in Chicago. Atmos. Environ. 42, 7266–7273 (2008)
D. Banting, H. Doshi, J. Li, P. Missios, Report on the Environmental Benefits and Costs of Green Roof Technology for the City of Toronto (2005)
T. Van Renterghem, D. Botteldooren, In-situ measurements of sound propagating over extensive green roofs. Build. Environ. 46, 729–738 (2011)
M. Santamouris, C. Pavlou, P. Doukas, G. Mihalakakou, A. Synnefa, A. Hatzibiros et al., Investigating and analysing the energy and environmental performance of an experimental green roof system installed in a nursery school building in Athens, Greece. Energy 32, 1781–1788 (2007)
T.G. Theodosiou, Summer period analysis of the performance of a planted roof as a passive cooling technique. Energy Build. 35, 909–917 (2003)
Q. Meng, W. Hu, Roof cooling effect with humid porous medium. Energy Build. 37, 1–9 (2005)
S. Ouldboukhitine, R. Belarbi, R. Djedjig, Characterization of green roof components: measurements of thermal and hydrological properties. Build. Environ. 56, 78–85 (2012)
N.H. Wong, D.K.W. Cheong, H. Yan, J. Soh, C.L. Ong, A. Sia, The effects of rooftop garden on energy consumption of a commercial building in Singapore. Energy Build. 35, 353–364 (2003)
O. Saadatian, K. Sopian, E. Salleh, C.H. Lim, S. Riffat, E. Saadatian et al., A review of energy aspects of green roofs. Renew. Sustain. Energy Rev. 23, 155–168 (2013)
K.L. Getter, D.B. Rowe, J.A. Andresen, I.S. Wichman, Seasonal heat flux properties of an extensive green roof in a Midwestern U.S. climate. Energy Build. 43, 3548–3557 (2013)
G. Spolek, Performance monitoring of three ecoroofs in Portland, Oregon. Urban Ecosyst. 11, 349–359 (2009)
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We greatly acknowledge the financial support of the Swedish Research Council Formas grant 2014-854.
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Schade, J., Shadram, F. (2019). The Energy Performance of Green Roof in Sub-arctic Climate. In: Johansson, D., Bagge, H., Wahlström, Å. (eds) Cold Climate HVAC 2018. CCC 2018. Springer Proceedings in Energy. Springer, Cham. https://doi.org/10.1007/978-3-030-00662-4_12
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