A roof greenery image library typically contains photographs and visual representations of green spaces and plants installed on rooftops in various countries. These libraries can serve as resources for architects, designers, and enthusiasts interested in sustainable building design and urban greening initiatives. They showcase different styles, plant species, and design principles used in roof gardening, which can range from small-scale residential rooftops to large-scale commercial and public buildings. The images often provide inspiration and guidelines for creating aesthetically pleasing and functional green roofs.