Green Roof Design: State of the Art on Technology and Materials

Cascone, Stefano

doi:10.3390/su11113020

Cited by 163 publications

(128 citation statements)

References 115 publications

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“…Both are an example of waste materials. Cascone [40] stated that crushed brick and construction waste are the most-used Copper and zinc in high values of 2.04 and 6.34 mg/kg, as well as phosphorus (2002 mg/kg) were also found in extracts from Ma5. As obtained values were extremely high, this sample was not taken into account in further comparisons and statistical analysis.…”

Section: Resultsmentioning

confidence: 99%

“…Both are an example of waste materials. Cascone [40] stated that crushed brick and construction waste are the most-used recycled material as an inorganic component in green roof substrates. Although the idea of waste recycling is noble, the use of such materials as a substrate component is not recommended due to potential contamination of receivers.…”

Section: Resultsmentioning

confidence: 99%

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Phosphorus and Metals Leaching from Green Roof Substrates and Aggregates Used in Their Composition

et al. 2020

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Green roofs are constructions made of different layers, each serving a dedicated function. Substrates and materials used in their composition are essential from the point of view of rainwater retention and plant development, but they may have an adverse effect on runoff quality. Literature studies show that phosphorus and heavy metals are of main importance. The total roofs area covered with green increased in the last years in cities as they are efficient in retention of rainwater and delaying of the runoff, therefore, protecting the cities against floods. As green roofs filtrate a significant amount of rainwater, materials used in substrates composition should be carefully selected to protect urban receivers against pollution. The aim of this study was to assess phosphorus and heavy metals leaching from different green roof substrates and their components with the focus on green roof runoff quality. Both commercially made green roof substrates and often used compounds (construction aggregates) were tested in laboratory batch tests for P, Cu, Ni, Cd, and Zn content in extracts. Based on the results of this study, it could be emphasized that a large part of commonly used construction aggregates can be a source of phosphorus, some also can release elevated values of nickel. Therefore, the materials should be carefully tested before use in the green roof substrate composition, not only for their physical properties reflecting water retention capacity, but also for chemical composition.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Phosphorus and Metals Leaching from Green Roof Substrates and Aggregates Used in Their Composition

et al. 2020

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“…In a discussion related to the feasibility of the green-roof, Stefano Cascone (2019) mentioned that there needs to be supported in the roles, requirements, characteristics, and materials, which are considered suitable for each green-roof layer [30]. The role needed in sustainable development includes the role of the community, in that, it is necessary to identify the role of the community in Indonesia to be able to prepare the strength for the implementation of green-roof innovations in a sustainable manner.…”

Section: Prospect Of Green Roofs Toward Sustainability Developmentmentioning

confidence: 99%

Green-Roof: The Role of Community in the Substitution of Green-Space toward Sustainable Development

2020

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The research challenge in the problem of the sustainable development goals is to find solutions for development control through the application of green roofs in residential areas, which is the feasibility of the role of the community. This research was based on the discipline of architecture by considering the role of the community in managing architectural green-space substitution. The purpose of this study was to identify patterns of the role of the community for green roofs feasibility based on housing, conducted in some parts of Sumatra, Java, and East Nusa Tenggara, Indonesia. Data were collected using a survey questionnaire. Data were calculated based on percentages and analyzed using the chi-square method. The results indicated that the optimization of the community role was needed for the sustainability of the green-roof from all economic levels, both urban and rural. The aspect of public awareness and knowledge of the benefits of the green-roof is very high, but the object of the green-roof in Indonesia is still very limited because participation is still not optimal. Therefore, it is necessary to promote the green-roof application to the community by adapting local culture in sustainable green-roof technology innovation.

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“…For the plant selection and design of the "PV Rooftop Garden", in general the same requirements used for any type of extensive or intensive green roof regarding load weight, waterproofing, drainage, growing media, and suitable plants should be fulfilled [19][20][21]46,47]. As the "PV Pergola" is not connected to the building, the weight of the substrate will provide the needed weight to hold the construction down against wind suction.…”

Section: Plant Selection and Green Roof Development: In-field Testingmentioning

confidence: 99%

The “PV Rooftop Garden”: Providing Recreational Green Roofs and Renewable Energy as a Multifunctional System within One Surface Area

2020

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In urban areas, summer temperatures are continuously increasing, and cities are aiming at implementing measures to mitigate the urban heat island (UHI) effect. Reducing sealed surfaces and adding plants have been shown to be beneficial for urban microclimates. Green roofs are thus a viable alternative to standard roofs made out of materials that completely seal the top layer. However, roofs are, at the same time, also ideal for the integration of photovoltaics (PVs), as they are mostly unshaded. With both applications competing for the same surface area, solutions must be found that symbiotically combine the benefits of vegetation and renewable energy. Using an interdisciplinary study, various designs were developed for prototypical applications to integrate PV systems into rooftop gardens, with a specific focus on retrofitting flat roofs. The prototypes were analyzed and tested based on structural design aspects, suitable plant choices, and energy output. The results showed that the concurrent integration of PVs and green roofs into the same surface area can be achieved with lightweight construction, which is particularly suitable for existing buildings. The system can contribute to much-needed urban renewable energy generation, the mitigation of the UHI effect, and the provision of recreational spaces.

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Green Roof Design: State of the Art on Technology and Materials

Cited by 163 publications

References 115 publications

Phosphorus and Metals Leaching from Green Roof Substrates and Aggregates Used in Their Composition

Phosphorus and Metals Leaching from Green Roof Substrates and Aggregates Used in Their Composition

Green-Roof: The Role of Community in the Substitution of Green-Space toward Sustainable Development

The “PV Rooftop Garden”: Providing Recreational Green Roofs and Renewable Energy as a Multifunctional System within One Surface Area

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