Fictitious Roof Greening in Reality

Quick answer：

Fictitious roof greening refers to the application of greenery on rooftops in a way that is not practical or feasible in the real world. It is often depicted in artistic representations or simulations to showcase the potential of green roofs. Real-world roof greening involves the use of plants, soil, and drainage systems to create a green space on top of buildings, which can provide environmental, social, and economic benefits.