Jul
Green Walls, also known as vertical gardens, living walls, and biowalls, are typically composed of three parts:
- Metal frame
- Layer of PVC
- Layer of felt
The metal frame can be mounted onto an existing wall or free-standing. A 1 centimeter-thick layer of PVC is then attached to the frame. This adds rigidity as well as waterproofing. Then a layer of polyamide felt is stapled to the PVC. The felt gives good water distribution; the roots of the plants grow on the felt.
There are two main categories in green walls: green facades, and living walls. Green facades are usually climbing plants growing either directly on the wall or on specially design structures. Living walls are made up of pre-vegetated panels attached to a wall. These walls can be put up anywhere as long as there is access to artificial light, water, and fertilizer. The walls are watered from the top, and the watering and fertilizing are usually automated.
(Source)(Source)(Image source)