hand-drawn Chinese roof greening

Quick answer：

Roof greening in Chinese architecture involves planting vegetation on rooftops. This practice is an ancient technique, which has recently gained popularity due to its environmental benefits, such as reducing urban heat island effect, improving air quality, and providing additional green spaces. Hand-drawn illustrations of Chinese roof greening typically depict traditional Chinese roof designs with plants growing on them. These drawings can serve as a guide for modern roof greening projects or as an artistic representation of traditional Chinese architecture.