A blue roof is designed to slow or store stormwater runoff, easing the burden on the stormwater systems.  When combined with the LiveRoof® brand green roof system—which in itself is an effective stormwater tool—the RoofBlue system maximizes rooftop stormwater management capability.  This may greatly reduce the need for other onsite stormwater management tools, such as cisterns, detention ponds, or underground storage tanks.