Vertical Wetlands
Mania Aghaei Meibodi
                2024

33



In the context of climate change, the urban ecological decline is exacerbated by the extensive use of impervious materials in urban structures, including the Urban Heat Island effect, reduced water storage capacity in urban fabric, and biodiversity loss. Urban Vertical Green (UVG) systems, represented by green facades, living walls, and vertical farming, offer solutions to mitigate these environmental degradations. This study investigates a method utilizing large-scale 3D printing to create a novel UVG system that supports multiple plant species through a hierarchical watering system. By adopting complex geometric designs with inner features, the proposed system can potentially provide diversified water and nutrient input to accommodate multiple plant species and facilitate biodiversity in urban settings. The study involves designing, fabricating, and testing a single construction-scale unit using robotic 3D printing with thermoplastic PETG. The successful prototype demonstrates the proposed system unit can be efficiently produced and easily maintained after installation. Therefore, the fundamental feasibility of the proposed UVG system is verified.