The property where the Ancaya Green Roof Garden Shed is located is topographically situated in a low area that gathers water during large rain events (4"+). Surrounding impervious rooftops are the major source of water runoff contributing to the small flood events. The property owners were in need of a backyard building to house gardening tools and materials but did not want to add to the impervious surface area. A green roof was a perfect choice for this situation. The green roof not only decreases the quantity of rainwater runoff from the garden shed roof, it also provides habitat for insects, birds, and butterflies, is an aesthetically pleasing addition to the urban backyard, and maintains cool temperatures inside the building creating a retreat from the summer heat. We are absolutely pleased with the green roof.