Comparative Life Cycle Costing Analysis of Green Roofs: The Regional Aspect

Ulubeyli, Serdar; Arslan, Volkan; Kazaz, Aynur

doi:10.21533/pen.v5i2.94

Cited by 6 publications

(5 citation statements)

References 37 publications

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“…Thermal insulation Aesthetics X Table 14 shows that green roofs contribute to all the criteria, while grass swales are lacking in some criteria. One of the important components of a building's sustainable design is its energy use for heating and cooling [119]. This shows that both green roofs and grass swales have the potential to decrease the energy consumption of residential areas with the help of the vegetation.…”

Section: Green Spacementioning

confidence: 99%

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Assessment of the Implementation of Sustainable Stormwater Management Practices in Asian Countries

Seitzhan,

Abdul Khadir,

Bakyt

et al. 2023

Sustainability

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Numerous efforts have been undertaken by Asian countries to mitigate the adverse effects of urbanization on stormwater management. However, traditional stormwater systems have become overwhelmed due to extensive development, resulting in excessive runoff and frequent floods. As a result, it is crucial to urgently adopt sustainable stormwater management practices (SSMPs) to effectively control water quantity and quality. The goal of this study is to assess the viewpoints of stormwater practitioners regarding green roofs, rainwater harvesting systems (RHS), grass swales, rain garden/bioretention systems, and porous pavement using a SWOT analysis. This was accomplished by distributing questionnaires and evaluating previous studies. The survey showed that participants mostly agreed with the strengths, weaknesses, opportunities, and threats factors related to the chosen SSMPs. Overall, the respondents favoured the implementation of green roofs and grass swales. Further assessments were conducted on these practices in other aspects, confirming that green roofs are the most preferable SSMP for implementation in Asian countries.

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Section: Green Spacementioning

confidence: 99%

“…Table 15 summarizes possible alternatives to overcome the policy barriers of implementing green roof according to the policies. [115][116][117]119].…”

Section: Green Spacementioning

confidence: 99%

Assessment of the Implementation of Sustainable Stormwater Management Practices in Asian Countries

Seitzhan,

Abdul Khadir,

Bakyt

et al. 2023

Sustainability

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“…Furthermore, the property value benefit for model 4 is reduced to 50% compared to the corresponding model 3. Based on the reviewed economic analysis from the literature [13,30,55,75], and the local tariff system, the price of the energy reduction is adopted as 0.08 EUR/kWh.…”

Section: Model and Parametersmentioning

confidence: 99%

Potential and Benefit of Green Roof Energy Renovation of Existing Residential Buildings with a Flat Roof in Belgrade

Perovic,

Coric,

Isakovic

et al. 2023

Applied Sciences

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Green roofs are considered to be one of the optimal tools for saving energy and protecting the environment in developed countries. In this paper, an analysis of the possible application of green roofs on existing residential buildings with flat roofs is presented. In the economic analysis, models of existing buildings in Belgrade, with two different types of green roofs, are studied. A key indicator of investment profitability in this investigation is the net present value (NPV) of the green roof project. Besides the private economic impact, other aspects of green roof applications, significant for sustainable development, have been highlighted. The values of the reductions in the annual energy needed for heating and cooling are compared for different scenarios. A maximum energy saving of 22% in the heating season is determined in the building energy simulation program for the model with an intensive green roof. Life cycle profit analysis was based on the probabilistic approach. The corresponding variance-based sensitivity analysis determined the impact of various parameters on the final result. In all models, the first order sensitivity index, which measures the impact of the number of residential units on the NPV, ranges from 12.2% to 63.6%. Sensitivity analysis showed that the benefit of property value increase has the highest influence on the calculated NPV in scenarios that account for this benefit. The obtained results in those scenarios indicate that the most probable NPV at the end of the life cycle is EUR 43/m2 and EUR 82/m2 for extensive and intensive green roofs, respectively.

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“…Although, over the last years, the economic evaluation of green roofs has gained more attention (Shafique et al, 2018;Shafique, Azam, Rafiq, Ateeq, & Luo, 2020;Ulubeyli, Arslan, & Kazaz, 2017), along with the environmental one, literature put in evidence how some components of the green roof life cycle cost analysis are often not taken into consideration. Specifically, the role of the disposal phase seems to be underestimated and/or lacking (Peri et al, 2012a(Peri et al, , 2012b.…”

Section: The Life Cycle Of the Substrate: A Lack Of Lca Studies On Green Roofsmentioning

confidence: 99%

Covering the Gap for an Effective Energy and Environmental Design of Green Roofs: Contributions from Experimental and Modelling Researches

Cirrincione

Peri

2021

Future City

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Green roofs are components of the building envelope that have become increasingly popular in urban contexts because other than providing numerous environmental benefits they are also capable of reducing building energy consumption, especially in summer. However, despite all these advantages, green roofs are still affected by some limitations. Specifically, there are some gaps affecting the energy modelling consisting in the absence of a proper database, information (growth stage, leaf area index, and coverage ratio) relative to the different green roof plant species, which technicians could use in case of lack of actual field data to perform energy analysis of buildings equipped with green roofs. These gaps concern also environmental and economic assessments of such technology. In fact, the currently available green roof LCA and LCC studies seem to underestimate the role of the substrate on the overall environmental impact and the role of the disposal phase on the life cycle cost of the green roof. In this chapter, all these aspects are addressed, and contributions to their solution, which arose from both experimental and modelling research, carried out by the authors are presented.

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Comparative Life Cycle Costing Analysis of Green Roofs: The Regional Aspect

Cited by 6 publications

References 37 publications

Assessment of the Implementation of Sustainable Stormwater Management Practices in Asian Countries

Assessment of the Implementation of Sustainable Stormwater Management Practices in Asian Countries

Potential and Benefit of Green Roof Energy Renovation of Existing Residential Buildings with a Flat Roof in Belgrade

Covering the Gap for an Effective Energy and Environmental Design of Green Roofs: Contributions from Experimental and Modelling Researches

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