Economics of green roofs and green walls: A literature review

Teotónio, Inês; Silva, Cristina Matos; Cruz, Carlos Oliveira

doi:10.1016/j.scs.2021.102781

Cited by 72 publications

(38 citation statements)

References 89 publications

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“…They also indicated that if the government applies tax reductions on installation costs, green facades can be economically sustainable. Teotonio et al [36] have conducted a literature study to examine green roofs and green facades in terms of economic aspects. According to their study, green facades are generally considered an expensive technology when evaluated economically alone.…”

Section: Cost Analysismentioning

confidence: 99%

Energy Saving Aspects of Green Facades: Current Applications and Challenges

Cüce

Güçlü

et al. 2021

Green Building & Construction Economics

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One of the most effective key methods to meet today’s increasing energy demands is to use resources efficiently. Especially in heating and cooling applications, notable energy savings are possible by efficient use of resources. For this purpose, insulation applications on building surfaces have been conducted for many years on a global scale. Besides, green facades are also considered to be one of the most suitable and efficient building cover technologies because of their superior benefits like energy saving, acoustic and thermal features, environmental aspects, and aesthetic appearance. Green facades are greenery media climbing over the facade, either traditionally or with special support structures. It is a highly preferred method in building coating applications, especially in recent years, but the initial installation and maintenance costs are somewhat expensive compared to traditional methods. Nevertheless, it still stands out as a cost-effective technology when its impacts on human health and environmental aspects are evaluated along with architectural features and social acceptance. Within the scope of this review, green facade systems are investigated in detail in terms of methodology, building applications, cost, challenges and potential solutions.

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Section: Cost Analysismentioning

confidence: 99%

Energy Saving Aspects of Green Facades: Current Applications and Challenges

Cüce

Güçlü

et al. 2021

Green Building & Construction Economics

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“…Vertical greening systems provide passive cooling for indoor and outdoor environments by reducing ambient air temperature, as well as enhancing the atmospheric quality and occupations' thermal comfort [7]. Moreover, green walls have many extraordinary benefits such as reducing internal air temperature, reducing energy consumption for cooling, creating a pleasant environment, and helping adapt urban areas and cities to climate change and global warming, mitigating the impact of industrialization and urbanization on the environment, and improving urban air quality [1,[8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Optimizing Shading and Thermal Performances of Vertical Green Wall on Buildings in a Hot Arid Region

2022

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Due to global concerns about energy issues, global warming, and urban quality, vertical greening systems (VGS) are receiving more attention in construction and design research. Therefore, VGS has become part of building envelope design as a passive technique for saving energy in building sectors. The current study aimed to investigate shading and energy performances of VGS in buildings in hot climate regions and to optimize VGS design as a building design element. The study was conducted through simulation and field experiments in a student housing building at a university campus (Irbid, Jordan). Field measurements were taken to assess the thermal effect of the green wall and daylight performance as well as the efficiency of the typical green wall design configuration. Furthermore, a methodology for accurately representing green walls was established and used. Both simulation and experimentation demonstrated that the thickness of the air cavity and the percentage of foliage coverage can have a substantial impact on the performance of the green wall system. Results showed that green wall systems are effective natural sunscreens and shading systems. A green wall helped to reduce the exterior wall surface temperatures by a range of 6 to 11 °C compared to the base case of the wall without a VGS on different days. In addition, it decreased the interior surface temperature of the investigated southern façade by an average of 5 °C compared to the base case. Green wall design configurations for hot climate regions, such as Jordan, will help designers to use the VGS as a design element. Our findings indicate that GW could help to improve the thermal and daylight environment and thus the results could be taken as indicative for GW wall design in other areas or buildings.

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“…In the case of inverted roofs, insulation boards are loose-laid on top of the membrane and then weighted down with paving slabs, gravel ballast or soil. This provides a perfect foundation for a terrace, garden or green roof, which are commonly used to improve the indoor thermal environment, reduce air-conditioning (cooling and heating) load and mitigate the Urban Heat Island (UHI) effect [14][15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Moisture Risk Analysis for Three Construction Variants of a Wooden Inverted Flat Roof

Sadłowska-Sałęga

Wąs

2021

Energies

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The paper presents an analysis of the hygrothermal performance of an inverted flat roof with a CLT (cross-laminated timber) structure in a building that meets the requirements of Passive House Standard (PHS) with regards to the potential risk of moisture. The calculations were made in the WUFI®Plus and WUFI®Bio software. The following variants were taken into account: three structure configurations, three different external climates and different scenarios of microclimate control and air change rate. The results of the calculations show that, especially in cooler climates, there is an actual moisture risk in the structure despite the excellent thermal insulation. The structure of the inverted flat roof, due to the use of a tight membrane on the outer side, allows for the partition to discharge the excess moisture only to the inside of the building. Ensuring the comfort of users may require periodic humidification of internal air, which translates directly into an increase in moisture content of the structure. The performed analysis clearly showed that there are no universal solutions. It is important to point out that for the proper performance of inverted wooden roofs, it is crucial to analyse moisture, not only thermal and energy parameters.

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Economics of green roofs and green walls: A literature review

Cited by 72 publications

References 89 publications

Energy Saving Aspects of Green Facades: Current Applications and Challenges

Energy Saving Aspects of Green Facades: Current Applications and Challenges

Optimizing Shading and Thermal Performances of Vertical Green Wall on Buildings in a Hot Arid Region

Moisture Risk Analysis for Three Construction Variants of a Wooden Inverted Flat Roof

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