What are the different green wall systems?
Green Wall Systems
There are three predominant systems utilised for green walls or vertical gardens.
Facade System
Hydroponic systems differ from the modular systems mainly through the replacement of soil with a layered sheet system of synthetic felt or mineral-wool as the substrate, which is irrigated directly with nutrient laden water and acts as a sponge in which the plants can grow.
Pockets are cut into the water retentive inert growing medium and plants roots can freely integrate with the substrate and with other plants.
http://www.growinggreenguide.org/wp-
content/uploads/2014/02/growing_green_guide_ebook_130214.pdf
Patrick Blanc Vertical Gardens https://www.inexhibit.com/case-studies/patrick-blanc-vertical-gardens/ http://www.greenhomebuilding.com/articles/livingwalls.htm
There are three predominant systems utilised for green walls or vertical gardens.
- Hydroponic
- Modular or compartmentalised
- Climbing or cascading facade systems
Facade System
Generally the simplest and cheapest option, facade systems have been utilised for thousands of years. Basically these systems involve plants climbing or cascading either directly over a building wall or on a support system attached to the wall.
The two main systems that facade systems tend to take are demonstrated below.
Self clinging plants like Ivy will often damage the wall surface with their sucker roots, which physically attach and integrate with the wall material.
Trellis or wire, cable or netting systems attempt to prevent this damage by separating the vegetation from the wall with an air gap.
http://www.growinggreenguide.org/wp-content/uploads/2014/02/growing_green_guide_ebook_130214.pdf
Self clinging and trellis system examples at RMIT
Climbing and cascading green walls (https://livingroofs.org/green-walls/ | https://i.pinimg.com/originals/c6/16/bf/c616bf775006d5dd55593f6099d4fbab.png)
Modular/Compartment System
Compartmentalised systems are generally more akin to a system of pots attached vertically to a wall. Often individual containers connected together in grid in panels, sometimes hard plastic, but bags or pocket systems are very popular too. They are generally framed into panels which sit off the wall with a waterproof backing, but can also be self supporting.
Generally they require a growing medium of soil or similar substrate.
(https://www.buildingdesignindex.co.uk/entry/137740/HyTex/VersiWall-modular-vertical-green-wall-system/
The two main systems that facade systems tend to take are demonstrated below.
Self clinging plants like Ivy will often damage the wall surface with their sucker roots, which physically attach and integrate with the wall material.
Trellis or wire, cable or netting systems attempt to prevent this damage by separating the vegetation from the wall with an air gap.
http://www.growinggreenguide.org/wp-content/uploads/2014/02/growing_green_guide_ebook_130214.pdf
Self clinging and trellis system examples at RMIT
Climbing and cascading green walls (https://livingroofs.org/green-walls/ | https://i.pinimg.com/originals/c6/16/bf/c616bf775006d5dd55593f6099d4fbab.png)
Modular/Compartment SystemCompartmentalised systems are generally more akin to a system of pots attached vertically to a wall. Often individual containers connected together in grid in panels, sometimes hard plastic, but bags or pocket systems are very popular too. They are generally framed into panels which sit off the wall with a waterproof backing, but can also be self supporting.
Generally they require a growing medium of soil or similar substrate.
(https://www.buildingdesignindex.co.uk/entry/137740/HyTex/VersiWall-modular-vertical-green-wall-system/
Pockets are cut into the water retentive inert growing medium and plants roots can freely integrate with the substrate and with other plants.
http://www.growinggreenguide.org/wp-
content/uploads/2014/02/growing_green_guide_ebook_130214.pdf
Patrick Blanc Vertical Gardens https://www.inexhibit.com/case-studies/patrick-blanc-vertical-gardens/ http://www.greenhomebuilding.com/articles/livingwalls.htm
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