Assessing the thermal performance of living wall systems in wet and cold climates during the winter

Nan, Xinge; Yan, Hai; Wu, Renwu; Shi, Yan; Bao, Zhiyi

doi:10.1016/j.enbuild.2019.109680

Cited by 21 publications

(9 citation statements)

References 43 publications

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“…The insulating effect of foliage is found to be greater at night, when larger variations in air temperature might be expected. This factor is supported by Nan et al [40], who found LWS provide an insulating effect during the evening and early morning. Riley [33] also reports that the greatest benefits can be gained from green walls at the times of lowest and highest temperatures of the heating and cooling season.…”

Section: Work By Safikhani and Baharvandmentioning

confidence: 61%

“…Additional findings from Nan et al [40] found that soil temperatures were greater than air temperatures and that LWS helped to raise internal temperatures by between 0.4 o C and 1.7 o C compared with walls without greenery. However, in winter the soil in the pockets of LWS is likely to be wetter than summer, which Charoenkit & Yiemwattana [41] argue could lead to greater heat loss in winter due to increased evaporative cooling.…”

Section: Work By Safikhani and Baharvandmentioning

confidence: 93%

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Living wall systems for improved thermal performance of existing buildings

Fox

Morewood

Murphy

et al. 2022

Building and Environment

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Section: Work By Safikhani and Baharvandmentioning

confidence: 61%

Section: Work By Safikhani and Baharvandmentioning

confidence: 93%

Living wall systems for improved thermal performance of existing buildings

Fox

Morewood

Murphy

et al. 2022

Building and Environment

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“…However, they have not been used in LW, so comparing their development and assessing their potential is interesting. Acorus gramineus was previously used in an experiment with LW by Nan et al (2020) and Carex oshimensis by Segovia-Cardozo et al (2019). Festuca glauca was successfully used in other studies, both in GR (Nagase et al 2017;Dusza et al, 2017;Yoon et al, 2021) and in LW (Cortês et al, 2021).…”

Section: Plant Species and Experimental Setupmentioning

confidence: 99%

Establishment and development of ornamental grasses on green roofs and living walls

et al. 2022

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Ornamental grasses are often used in gardens to improve biodiversity and as additional aesthetical resources. However, their use in green roofs (GR) and living walls (LW) is not so widespread and it has not been studied extensively. The aim of this work is to assess the performance of seven grass species (Imperata cylindrica ‘Red Baron’, Acorus gramineus, Stipa tenuissima ‘Pony Fails’, Carex flagellifera ‘Bronzita’, Carex oshimensis ‘Evergold’, Uncinia rubra ‘Everflame’ and Miscanthus sinensis) for their use in GR and LW. The growth of the plants was evaluated (i.e. biomass production, dimensions), as well as their visual quality and survival. C. flagellifera and C. oshimensis showed coverage levels greater than 75% and good visual quality, while A. gramineus reached 55–60%. I. cylindrica and M. sinensis showed coverages slightly below 50% in the LW, however, both performed well in the GR, though with a lower visual quality. U. rubra did not develop well, reaching the lowest coverage (below 45%) but maintaining a high visual quality. S. tenuissima also attained low coverage in the LW and presented high mortality, especially in the GR. In LW, C. oshimensis stood out in flowering, while S. tenuissima showed the highest flowering rate in GR. The species should be selected considering their characteristics and performance in order to achieve a correct appearance and development. Interspecific interactions are especially important in LW, as species with upward growth should be placed above species with fallen leaves, not below.

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“…Living walls and green façades are the two main systems used to categorize vegetated façades [10]. This category is based on the methods, construction, and traits [11], as well as the growth method [12].…”

Section: Vegetated Façades Systemsmentioning

confidence: 99%

“…It is regarded as a flexible, adaptive tool for environmental design [12]. Either the base ground or planter pots are used to root the plants [10]. vines, Lianas, and scramblers are the kind of climbing plants that are used in a green façade [12].…”

Section: Vegetated Façades Systemsmentioning

confidence: 99%

The effect of using vegetated façades on CO₂ emissions in multistory residential buildings, in cold semiarid and hot arid climate

Alothman

Abdin

Ahmed

2022

IOP Conf. Ser.: Earth Environ. Sci.

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CO2 emissions are known as carbon emissions and they are increasing globally, so measures must be taken to reduce their emissions and find solutions that mitigate the effects of high rates of emissions. CO2 emissions are currently increasing, and the construction sector is the largest source of these emissions, accounting for 39% of total emissions; therefore, CO2 emissions must be reduced as much as possible. The research aim is to study the effect of applying vegetated façades, in multistory residential buildings on the CO2 emissions under two different climates, cold semiarid and hot arid. The tool which is used is a DesignBuilder to evaluate the CO2 emissions. Thermal insulation contributes to reducing the carbon footprint of the building and consider as an additional layer applied to the bare wall façade as the same as the vegetation layer therefore in this research the comparison will be between the use of insulation materials and green façade with a bare wall façade of residential buildings to determine the effectiveness of using vegetated facades in reducing CO2 emissions. The study found that vegetated facades reduce CO2 emissions from 36.2 to 51.4 in cold semiarid climates and from 18% to 37.6% in hot arid climates.

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Assessing the thermal performance of living wall systems in wet and cold climates during the winter

Cited by 21 publications

References 43 publications

Living wall systems for improved thermal performance of existing buildings

Living wall systems for improved thermal performance of existing buildings

Establishment and development of ornamental grasses on green roofs and living walls

The effect of using vegetated façades on CO₂ emissions in multistory residential buildings, in cold semiarid and hot arid climate

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Assessing the thermal performance of living wall systems in wet and cold climates during the winter

Cited by 21 publications

References 43 publications

Living wall systems for improved thermal performance of existing buildings

Living wall systems for improved thermal performance of existing buildings

Establishment and development of ornamental grasses on green roofs and living walls

The effect of using vegetated façades on CO2 emissions in multistory residential buildings, in cold semiarid and hot arid climate

Contact Info

Product

Resources

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The effect of using vegetated façades on CO₂ emissions in multistory residential buildings, in cold semiarid and hot arid climate