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Buildings 2018, 8(4), 55; https://doi.org/10.3390/buildings8040055

Performance of Blue-Green Roofs in Cold Climates: A Scoping Review

Department of Civil and Environmental Engineering, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway
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Received: 15 February 2018 / Revised: 24 March 2018 / Accepted: 6 April 2018 / Published: 10 April 2018
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Abstract

Green and blue-green roofs are emerging as an increasingly popular feature of rooftops, particularly in urban areas. Particular problematic conditions render their usage complex in the Nordic countries. In order to ensure that green roofs are built durable and with the service life expected of them, it is important to know all the relevant factors surrounding their construction and operation. A scoping study was conducted in order to gain an overview on green roof research and available scientific literature. One hundred articles of particular interest for Nordic climates were retrieved and their findings summarized. It is found that the vast majority of green roof research has been conducted on a theoretical basis, or with practical measurements on green roof test beds or isolated components. There is scarcely any literature on the operation of full-scale, building-implemented green roofs, and no articles were found on the building technical performance of aged green roofs. These knowledge gaps indicate a major risk factor in green roof operation, as their performance and integrity over time has not been documented. This despite the fact that green roofs have been implemented and in operation worldwide for decades. View Full-Text
Keywords: blue-green roof; green roof; cold climate; multi-disciplinary performance; state-of-the-art; scoping study blue-green roof; green roof; cold climate; multi-disciplinary performance; state-of-the-art; scoping study
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Andenæs, E.; Kvande, T.; Muthanna, T.M.; Lohne, J. Performance of Blue-Green Roofs in Cold Climates: A Scoping Review. Buildings 2018, 8, 55.

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