More than just a Green Facade: The sound absorption properties of a vertical garden with and without plants

Davis, Michael Maks; Tenpierik, Martin; Ramirez, Francisco; Pérez, María Elena

doi:10.1016/j.buildenv.2017.01.010

Cited by 50 publications

(33 citation statements)

References 17 publications

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“…An LWS can also be used as a passive acoustical insulation system. 98 Some studies show that vegetation can reduce sound levels in three ways. First, sound can be reflected and dispersed by plant elements, such as trunks, branches, twigs and leaves.…”

Section: Resultsmentioning

confidence: 99%

“…• Vegetation has been found to improve occupant comfort, as well as their perception of the quality of their environment, including thermal comfort and acoustics. 59,98,104 • Several research studies indicate the possible effect of vegetation on IAQ. 40,41,62 However, there is still a lack of solid and relevant data available to understand the true pollutant-removal mechanisms and factors in these systems (plant species, microorganism types, gas composition, light source, number of plants), its cooling effect within indoor environments and the effect of these systems on the energy performance of the building.…”

Section: Conclusion and Recommendationsmentioning

confidence: 99%

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A review of green systems within the indoor environment

Moya

Dobbelsteen

Ottelé

et al. 2018

Indoor and Built Environment

114

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This paper reviews the state of art of vegetation systems and their effect on the indoor environmental quality (IEQ), based on scientific studies from the past 30 years. Some studies have shown that biophilic workspaces and interaction with plants may change human attitudes, behaviours, improve productivity and the overall well-being. Evapotranspiration from plants helps lowering the temperature around the planting environment and this can be utilised for air cooling and humidity control. Also, indoor greenery can be used to reduce sound levels as a passive acoustic insulation system. Living wall systems in combination with biofiltration are emerging technologies to provide beneficial effects on improvement of indoor comfort. Several studies have indicated that green systems may improve indoor air quality and that they have different pathways for pollutant removal of volatile organic compounds. The plant root zone in potted plants may be an effective area for removing volatile organic compounds under controlled conditions. In conclusion, the full capacity of plants in real-life settings will need to be clarified to establish the true pollutant-removal mechanisms and the general effect on IEQ. The effects of green systems in combination with mechanical elements such as conventional heating, ventilation and air conditioning would need to be studied.

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Section: Resultsmentioning

confidence: 99%

Section: Conclusion and Recommendationsmentioning

confidence: 99%

A review of green systems within the indoor environment

Moya

Dobbelsteen

Ottelé

et al. 2018

Indoor and Built Environment

114

View full text Add to dashboard Cite

show abstract

“…The systems examined exhibited highest sound absorption coefficients relative to other materials, with absorption coefficients positively correlated with frequencies and plant coverage [64]. Laboratory studies by Davis et al [65] also noted that living walls correspond to the behaviour of porous absorbers with low absorption evident at lower frequencies and high absorption at higher frequencies. To improve acoustic performance, parameters such as mass (thickness and composition of substrate and vegetation), impenetrability (sealed joints, [e.g.…”

Section: Acousticsmentioning

confidence: 89%

Living walls in indoor environments

Gunawardena

Steemers

2019

Building and Environment

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The warming climate, projected increase in frequency and severity of extreme heat events, and the long-established heat island phenomenon are all expected to exacerbate urban environmental thermal loading. Active means used for addressing such risks are likely to increase energy consumption and emission trends to create a positive feedback loop that could threaten the health and wellbeing of urban citizens. In response, passive approaches such as green infrastructure enhancements are widely advocated, and to meet the challenges of implementing enhancements in dense cities, attention has been directed toward encouraging surface greening. This paper recognises this trend and considers vertical greening as a developing interest with application opportunity in both exterior and interior urban environments. A review of available studies and interviews with experts found most observations available to be derived from exterior applications. Interior applications consequently have yet to be investigated to determine relative value to indoor environments where most of human habitation is typically concentrated. The integration of plant science studies in this regard is highlighted as essential to develop a balanced evidence base for the enthusiasm observed for promoting indoor living wall installations.

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“…Studies have been conducted on various sound fields, such as those in gardens. Davis et al measured the number of random incidences of sound absorption in vertical garden modules [6].…”

Section: Introductionmentioning

confidence: 99%

Courtyard Sound Field Characteristics by Bell Sounds in Han Chinese Buddhist Temples

et al. 2020

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The acoustic environments of Han Chinese Buddhist temples have long played an important role in the development of Buddhism. This study explored the effects of layouts and spatial elements of Han Chinese Buddhist temples on courtyard sound fields. First, sound fields of three traditional Han Chinese courtyards were measured, and results were compared with sound field simulations to determine the appropriate acoustic and software parameter setting for ancient building materials in the context of sound field simulation. Next, a sound field model for standard forms of Han Chinese Buddhist temples was built and analysed. Results indicate that in traditional Buddhist temples, spatial elements-such as the height and sound absorption coefficient of temple courtyard walls, position of courtyard partition walls, and the position and height of bell towers-could significantly affect the sound pressure level (SPL), reverberation time (RT), and musical clarity (C 80 ) of each courtyard. However, enclosure materials, such as those used in roofs, on the ground, and in windows of Han Chinese Buddhist temples, had relatively small effects on temple courtyard sound fields.

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More than just a Green Facade: The sound absorption properties of a vertical garden with and without plants

Cited by 50 publications

References 17 publications

A review of green systems within the indoor environment

A review of green systems within the indoor environment

Living walls in indoor environments

Courtyard Sound Field Characteristics by Bell Sounds in Han Chinese Buddhist Temples

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