An Innovative Planting System for a Vertical Green Wall

Abstract

Under the influence of high building density, the heat island effect resulting from urban microclimates increases the heat load of the environment. Through evapotranspiration and shading effects of plants, the addition of green walls to exterior building walls can effectively lower the ambient temperature and satisfy greening needs. Most existing green wall systems use chemical foams and have a short service life. To effectively enhance the benefits of green walls, this study combined green planning, building-human coexistence, use and reuse of rainwater, and green materials to develop a green wall system that delivers sustainable greening. The proposed novel system is innovative and feasible, enables green walls to deliver long-lasting effects, uses the exterior structure of buildings for energy conservation, and facilitates sustainable development for eco-city.