Roof greenery on high-rise residential buildings refers to the practice of creating green spaces on the roofs of these structures. It involves planting vegetation, creating garden areas, or incorporating other elements that contribute to the aesthetic and environmental benefits of the building. This concept aims to improve air quality, reduce urban heat islands, provide additional green space in urban areas, and enhance the overall sustainability of the building. The image provided likely showcases a high-rise building with a well-designed and implemented roof garden or greenery system.