A comprehensive study of green roof performance from environmental perspective

Li, Wai Chin; Yeung, Ka Ka Annie

doi:10.1016/j.ijsbe.2014.05.001

Cited by 170 publications

(126 citation statements)

References 34 publications

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“…Li and Yeung [22] give an overview of the environmental benefits of green roofs, as well as the barriers for applying extensive green roof systems. Non-native plant species were found to have a higher survival rate than natives in reviewed field tests.…”

Section: Lca/ecologymentioning

confidence: 99%

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

et al. 2018

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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.

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Section: Lca/ecologymentioning

confidence: 99%

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

et al. 2018

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“…It is thus recognized that the establishment of vegetation cover is a limiting step in the installation of green roofs [23]. This step depends strongly on the substrate, without which the vegetation can only rarely settle.…”

Section: Introductionmentioning

confidence: 99%

“…It is therefore important to establish plant selection criteria prior to implementation [22]. In the case of Mediterranean green roofs, the main criteria are drought tolerance, their indigenous nature, aesthetic characteristics (to ensure acceptance by the general public) and low maintenance requirements [3,16,23,32]. Regional plant communities can thus serve as a model for the recruitment and installation of seeds on green roofs [22,32,33], being composed of stress-adapted species and ruderal species that have the capacity to maximize resources.…”

Section: Introductionmentioning

confidence: 99%

Substrate Composition and Depth Affect Soil Moisture Behavior and Plant-Soil Relationship on Mediterranean Extensive Green Roofs

Chenot

Gaget

Moinardeau

et al. 2017

Water

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Abstract:The Mediterranean basin is extremely vulnerable to climate change, and one of the areas most impacted by human water demand. Yet the green roofs increasingly created both for aesthetic reasons and to limit pollution and urban runoff are themselves very water-demanding. Successful green roof installation depends on the establishment of the vegetation, and the substrate is the key element: it conserves water, and provides the nutrients and physical support indispensable for plant growth. Since typical Mediterranean plant communities require no maintenance, this study seeks to develop techniques for creating maintenance-and watering-free horizontal green roofs for public or private buildings in a Mediterranean context. The innovative aspect of this study lies in creating two soil mixes, fine elements (clay and silt) and coarse elements (pebbles of all sizes), in two different thicknesses, to assess vegetation development. Monitoring of substrate moisture was carried out and coupled with local rainfall measurements during summer and autumn. As expected, substrate moisture is mainly influenced by substrate depth (the deeper, the moister) and composition (the finer the particles (clays and silts), the higher the moisture content). Vegetation cover impacts moisture to a lesser extent but is itself affected by the composition and depth of the substrates. These results are subsequently discussed with relation to the issue of sustainable green roofs in Mediterranean climates. Considering applications of our results, for an optimal colonization of a Mediterranean vegetation, a substrate thickness of 15 cm composed mainly of fine elements (75% clay-silt and 25% pebble-sand) would be recommended in green roofs.

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“…Green roofs become widely popular in France, Switzerland, United Kingdom, Austria, Norway. This paper represents comprehensive study of energy saving potential and environmental benefits of green roofs [1]. The acceptance of green roof is a going on since 1960 [24].…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Study the Potential of Green Roof System

2017

IJAERD

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A comprehensive study of green roof performance from environmental perspective

Cited by 170 publications

References 34 publications

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

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

Substrate Composition and Depth Affect Soil Moisture Behavior and Plant-Soil Relationship on Mediterranean Extensive Green Roofs

Comprehensive Study the Potential of Green Roof System

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