Fig. 1From: Employing systems of green walls to improve performance and rationalize energy in buildingsThe main concept of the green façade (left) and living wall (right) [8]. The green façade where plants are directly on the wall with roots in the ground or upon a net fastened to the wall with roots in the earth. The living wall where plants; their roots are on-wall-mounted units or upon a net fixed to the wall, and the roots do not extend into the groundBack to article page