Types, Components, and Benefits of a Green Wall

Green roof innovation has become a recognised sustainable design concept in recent years as the features and benefits have become better acknowledged, and proven design solutions have become more widely available.

Building green isn’t an expensive experiment anymore; almost any organisation can accomplish it on a typical budget by following a few simple criteria.

Green walls appear to be one of the latest design trends. Still, despite their increased exposure and exponential popularity, they date back a long time.

Stanley Hart White first patented the concept of a living green wall in 1938, and it was later popularised by French botanist Patrick Blanc.

Blanc is known as the “Godfather of Green Walls” because of his works at the Musée du Quai Branly in Paris.

In the post below, we will guide you through what Green Wall is, its associated benefits, and its various types.

What Is Green Wall?

Green walls are an immediately recognised symbol of the green building movement because they are evident and directly influence the amount of green movement.

The backbone of any green wall is meticulously planned and performed by growing media.

So, just what is Green Wall?

Green walls are vertical buildings that are adorned with various sorts of plants or other vegetation. Greenery is frequently planted in a growing medium of soil, stone, and water.

Because the walls include living plants, they typically include built-in irrigation systems. A green wall is an umbrella word for all vegetative wall surfaces.

As the research and development and use of several types of vegetated wall systems have increased in recent decades, it is critical to understand the distinctions between types and the commonly used contemporary nomenclature.

Why Pursue Green Wall?

The green wall can really be helpful in a variety of ways. This includes the following:

  • Green walls have been shown to positively impact lowering the Urban Heat Island Effect.
  • Extreme rainfall events are becoming increasingly common as a result of climate change. Green walls can help reduce surface runoff volumes, flash floods, and the sewage system.
  • Green walls provide an additional layer of thermal insulation, reducing the demand for air conditioning in the summer and providing some insulation in the winter.
  • Green walls help absorb fine dust and purify the air in metropolitan areas by filtering airborne particles and toxins from the atmosphere. They do so with green wall substrates and vegetation.
  • Green walls help lower summer temperatures and cut energy expenses by 23% via shading.
  • Green wall systems reflect, absorb, or even deflect sound waves by combining plants, substrate, and entrapped layers of air. As a result, they can serve as a sound insulation barrier.
  • In urban settings, green walls provide a protected habitat (essential refuges) for wildlife, such as numerous insect and bird species. Green roof constructions, for example, can be linked to ecosystems on the floor by green walls.
  • Green walls not just to beautify the structure, but they can also increase the building’s resale value. Apartments featuring green facades are pretty famous and in high demand on the market for real estate.
  • Safeguard the structure against rain and temperature fluctuations to prevent the contraction and expansion that causes cracks and damage. According to some research, surface temperatures on a green wall might be up to 15 degrees Fahrenheit lower than on a bare wall.
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What are well-known Green Wall types?

Green walls are now classified into four categories of systems: Green Façade, tray systems, living walls, and freestanding walls.

A thorough study of these sorts can assist you in determining which one is most suited to your requirements.

Green Façade

A ‘Green Façade’ (or façade greening) is a system that trains climbing plants and cascading groundcovers to grow up and over specifically constructed supporting structures.

Green façades are classified into modular trellis systems and cable/rope wiring systems.

Because they can be freestanding, wall-mounted, or utilised as columns, these two systems provide considerable architectural versatility.

Modular trellis items can be erected vertically and can be wall-mounted or freestanding. Cable/rope wiring systems can span large distances.

However, unusual or elaborate designs may negate the system’s simplicity.

Green facades featuring climbing plants are built on-site using conventional skill sets (– for example, carpentry), removing the need for specialised installation and design professionals.

Nursery plants are typically planted at the base, occasionally in intermediate pots or rooftops.

It may take a while until full plant coverage is achieved. Pruning and pinching may be necessary as part of regular maintenance programming.

Tray systems

Plants are grown off-site and implanted into the wall, allowing for architectural flexibility, particularly because trays may be removed and replaced.

Tray systems are most typically utilised in interior settings since they are less expensive than panel systems. GSky’s Versa Wall is an excellent illustration of a tray green wall system.

With tray systems, every individual tray is intended to retain a specific amount of water, eliminating the need for plants to fight for hydration.

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Furthermore, because of the trays’ orientation, no soil or water spills forwards, making them acceptable for indoor use.

Tray systems also present unique issues. Tray systems can cause bugs, fungus, mould, and even infections because the plants are anchored in the soil.

As a result, they frequently have to renew at least once a month, which is inefficient and costly.

Smith stated that in previous experiences in the healthcare sector, clients were adamant about using soil-free solutions that adhere to a building’s sanitation and health safety requirements.

Tray systems are an inappropriate option in these cases.

Living Wall

A ‘Living Wall’ is a component of an outer building envelope or even an interior wall. A living wall comprises different pre-vegetated panels planted on location, including growing media or liquid nutrition.

The panels are put into or even on top of frames and can be fastened to a structural wall or self-supporting.

Living wall panels are often made of plastic, clay, expanded polystyrene, or concrete and can sustain a wide range of plant species (for example, low shrubs, a rich mixture of groundcovers, ferns, perennial flowers, and/or food plants).

These can also be employed to make visually attractive and unique wall designs. Living walls can also provide natural bio-filtration for indoor air when used inside.

Freestanding walls 

Freestanding living walls are more minor, mobile living walls that can be used indoors or outdoors.

They can be positioned against the wall or at the center of the room and are great for interim spaces or changing floor plans. They may also be utilised as room separators or partitions.

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What are the essential components of a Green Wall?

A typical green wall configuration, as indicated in the architecture of green walls, consists of the following components:

  • Plants: The plants used for green walls vary depending on whether they are utilised indoors or outside. Tropical plants, for example, are employed for indoor green walls. Plants such as vines, ferns, and climbers. Plants such as hardy vines, sedums, and climbers can be used to create exterior green walls.
  • Irrigation system: Drip irrigation systems with integrated controllers are available.
  • Control basin: It is a structure designed to manage water runoff.
  • Modular Panel System: The system is utilised to keep the roots and growing material contained.
  • Structural Support System: A robust and sturdy structural support system is provided to support all the components mentioned above.

Final Thoughts

A well-designed green wall will significantly benefit the building and community in which it is located. This same green concept, in all its forms and components, can assist in achieving certain noteworthy sustainable design objectives, add to the total value, and enhance the welfare and health of those who use or occupy the building for years to come.

A gorgeous green wall conveys movement as well as life. This ever-changing environment connects people via aroma, texture, and design. Green walls add additional aspects to architecture and inspire innovation.

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