There are many types of garden shed roofs. The roof design you choose for your garden shed will have a lot to do with its function. One of the best garden shed roofs is a green roof. Green roofs are a great way to cool a building while adding a carbon dioxide magnet to underutilized space. If more of them are installed in our building, they can have a major impact on storm water management. They can impact global warming by cooling hot cityscapes. For individuals, green roofs serve multiple purposes, from simply working as environmentally friendly insulation to functioning as a vegetable garden or a site for recreation. A green roof for garden shed is an integrated structure that allows even drainage and more consistent weight distribution across the entire roof.