Green Wall 101: Purpose and Benefits of Living Walls

Written by on June 9, 2019 in Eco-Friendly, Environment with 0 Comments
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One of the rising trends in eco-friendly architecture and design is the installation of plant walls or green walls in urban landscapes. By definition, a green wall is any vegetation that grows against or on a vertical surface. It differs from a façade because the vegetation grows on a medium, instead of from the ground. The medium used for a green wall consists of water, soil, stone, and a built-in irrigation system.

The plants used for green walls are already pre-grown and will not take time to appear lush. Some more advanced green wall designs feature artificial intelligence to enhance its function. For example, a smart green wall can feature humidification and air purification technology.

The benefits of green walls

There is more to a green wall than simply putting vegetation where it cannot grow naturally. Studies have shown that the more a person is exposed to nature, the lesser the occurrence of negative behaviours such as depression, anxiety, and aggression. Green walls in workplaces can help in uplifting the mood of employees as well as reduce mental fatigue and stress.

Air quality is also significantly improved by using certain types of plants with sufficient air-purification qualities. With the addition of smart technology, these walls can regularly function as filters for toxins and air pollutants and maintain optimum air quality standards.

Different types of green walls

Green walls are categorised as either indoor or outdoor installations. The primary purpose of an outdoor green wall is to add visual appeal to a specific space or building. Apart from visual impact, it may also act as insulation and capture rainwater. These living walls are a cost-effective way to introduce greenery into an urban landscape which in turn helps lower temperatures, especially during warmer weather.

In contrast, an indoor green wall is usually limited in size and is designed to be easier in terms of maintenance. If the installation has smart technology, the designer has to consider the right size that will maximise the function of the wall.

Selection of plant species

Selecting the right vegetation for a living wall depends on the purpose of the wall. Although not strictly required, evergreen plants are usually the more convenient choice for both indoor and outdoor installations. For indoor walls, the apparent selection includes tropical houseplants.

The location and availability of technology also significantly impacts plant selection, especially when the wall is outdoors. Specific factors to consider are temperature change, rainfall condition, availability of sunlight, and the wind.

Plant selection and selecting the right growth medium and irrigation also go hand-in-hand. Some plants cannot grow in anything other than soil, while other species require a quick-drying plant medium to thrive. It is also essential to maintain a stable environment as sudden changes in the surrounding conditions may lead to diseases and pest infestation.

Conclusion

 Green walls are an excellent addition to a commercial or residential workplace. If you are looking to have one installed, have a professional green wall company assist you in designing and choosing a green wall with built-in features that suit your needs.

 

Image: https://pixabay.com/photos/balconies-building-patio-plants-1031241/

 

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