You benefit and so does the environment!
Green walls allow plants to be grown in dense urban areas where spatial constraints may limit the presence of traditional urban forestry, such as parks and street trees. Green walls not only enable the presence of nature, but also allow people to truly connect with nature as they build, plant and maintain living systems.
Plants are good for our health and happiness. In particular, the high densities of plants that can be achieved with green walls maximise the improvements in health and wellness associated with the presence of plants.
Green walls are able to remove air pollution from the air. The plants within green walls can capture airborne particles from the air on their foliage, while the biological components of green walls, including the plants and associated microbial community, are able to degrade a range of gaseous pollutants, such as volatile organic compounds (VOCs). The natural air cleaning ability of this biological system leads to improved air quality.
Thermal regulation is one of the most researched benefits of green walls. Green walls are able to reduce high temperatures within buildings by intercepting solar radiation (shading) and through transpiration (evaporative cooling). Additionally, green walls have been shown to have beneficial insulating effects in cold climates. These mechanisms enable less reliance upon heaters and air conditioners for temperature maintenance and allow reductions in the energy consumption associated with temperature maintenance.
Green walls can provide an acoustic insulation effect. Sound waves can be absorbed or reflected by the plant foliage, growth substrate and supporting structures of green walls. This effect can lead to reductions in noise including noise from traffic.
Green walls are also a modern approach of increasing biodiversity in urbanised areas, especially if native plants endemic to the region are used. Green walls that have many flowers and plants with nectar can encourage wildlife to interact with the space. Green walls could enable animals to bridge the gap between their fragmented urban habitats, and even offer refuge and shelter for animals.
This website was developed in collaboration with UTS Shopfront at the Centre of Social Justice and Inclusion and the student Visual Communication team from the Faculty Design Architecture and Building at the University of Technology Sydney. Aaron Davis, Beth Sacco, Emma Lai, Leeanne Takashima and Lucy Ward were supervised by Claudia Leigh.