Low carbon districts: Mitigating the urban heat island with green roof infrastructure

Lehmann, Steffen

doi:10.1016/j.ccs.2014.02.002

Cited by 90 publications

(61 citation statements)

References 6 publications

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“…studies, which will be carried out on the reference research facility, the soil substrate layer is to be made according to the recommendations of the German Landscape Research, Development and Construction Society (Forschungsgesellschaft Landschaftsentwicklung Landschaftsbau-FLL) and DAFA (Association of Flat Rooftops and Façades Contractors) [97,74] with certain adjustments to accommodate the specificity of the climate of the tested region. Based on the results of research on green roofs carried out by different researchers [29,50,51,63,92,94,[97][98][99][100], a methodology for testing green roofs on a laboratory scale (in the climatic conditions of Central and Eastern Europe) has been developed; a decision was also made to build three other research models of varying structures, and various substrate layers in particular. The set of research models, thus developed, will allow for an analysis of the impact of various green roofs on the parameters of the environment, such as particulate and gas pollution of the air, utilization of rainwater, as well as the elimination of the phenomenon of the urban heat island.…”

Section: Discussionmentioning

confidence: 99%

“…High temperatures in urban areas cause an increase in power demand for air conditioning systems by almost three times, but at the same time, their efficiency drops by about 25% [43,44]. Absorption of solar radiation and heating up of traditional roof surfaces can be minimized by the use of plants on the green roof [43][44][45][46][47][48][49][50][51][52][53].…”

Section: Thermal Effectsmentioning

confidence: 99%

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The Impact of Green Roofs on the Parameters of the Environment in Urban Areas—Review

Suszanowicz

Więcek

2019

Atmosphere

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This study presents the results of a review of publications conducted by researchers in a variety of climates on the implementation of ‘green roofs’ and their impact on the urban environment. Features of green roofs in urban areas have been characterized by a particular emphasis on: Filtration of air pollutants and oxygen production, reduction of rainwater volume discharged from roof surfaces, reduction of so-called ‘urban heat islands’, as well as improvements to roof surface insulation (including noise reduction properties). The review of the publications confirmed the necessity to conduct research to determine the coefficients of the impact of green roofs on the environment in the city centers of Central and Eastern Europe. The results presented by different authors (most often based on a single case study) differ significantly from each other, which does not allow us to choose universal coefficients for all the parameters of the green roof’s impact on the environment. The work also includes analysis of structural recommendations for the future model green roof study, which will enable pilot research into the influence of green roofs on the environment in urban agglomerations and proposes different kinds of plants for different kinds of roofs, respectively.

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Section: Discussionmentioning

confidence: 99%

Section: Thermal Effectsmentioning

confidence: 99%

The Impact of Green Roofs on the Parameters of the Environment in Urban Areas—Review

Suszanowicz

Więcek

2019

Atmosphere

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“…Concerning vegetation, this takes the shape of urban forestry and green architecture (Lehmann 2014). Urban forestry is the incorporation of trees in and around the urban community for the environmental, social, economic, and aesthetic benefits trees provide (Konijnendijk et al 2006;Nowak et al 2010).…”

Section: Strategic Vegetationmentioning

confidence: 99%

Vertical Greenery Systems as a Strategy in Urban Heat Island Mitigation

Price

Jones

Jefferson

2015

Water Air Soil Pollut

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Integrating vegetation into architecture has become widely recognized as a multi-beneficial practice in architecture and engineering design to combat an array of environmental issues. Urban areas have microclimates that are different than the climates of their surrounding rural areas. Patterns in these differences over the years have shown that urban microclimates tend to be significantly warmer in comparison. This phenomenon is now recognized as the urban Bheat island^effect. While the associated consequences of this urban heating are far reaching, excess energy expenditure, air pollution emissions, and threats to human health are among the most critical for evaluation. The integration of vegetative green space in urban planning, coupled with highly reflective materials in place of conventional paved surfaces on roads and rooftops have proven to be effective methods of urban heat island mitigation. While as separate entities these methods are effective, innovative technology has brought forth greening roofs which allows vegetation to compensate where other roof-cooling strategies fall short. Substantially, vertical greenery systems compensate where greening roofs fall short. This paper explores both integrated vegetation as an optimal mitigation strategy for urban heat islands and vertical plant walls as an optimal design.

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“…Lehmann (2014) explained how to optimize this effect with the crucial parameters for green roofs being rooftop surface albedo, substrate depth, vegetation species, density of planting, watering regime/soil moisture and whether the roof is generally an extensive or intensive green roof. Lehmann argued that irrigation improves the performance of green roofs due to increased evapotranspiration, and the increased water use can be accommodated with recycling of greywater and rainwater harvesting [15].…”

Section: Introductionmentioning

confidence: 99%