A green roof is a type of roof that has vegetation growing on it. This can include grasses, flowers, and other plants that are specially designed to thrive in these conditions. The purpose of a green roof is to provide several benefits, including reducing energy consumption by providing insulation, absorbing rainwater, creating habitats for wildlife, and improving air quality by filtering pollutants. Green roofs also have the added benefit of making buildings more visually appealing and providing recreational spaces in urban areas. Overall, green roofs are an environmentally friendly solution that can help to create sustainable communities.