Located at O’Hare International Airport, “The Chicago Fire Department’s Rescue Building #3 features a 3,860 square-foot green roof designed to help improve air quality, conserve energy, reduce storm water runoff, reduce urban heat island effect, and serve as an insulated roof and radiant barrier. The plantings, which include sedum and other groundcover, also provide an aesthetic benefit for the Airport Transit System (ATS) riders, who can view the green roof as they travel to their terminal from the remote parking lots. In addition, the firehouse roof features ten solar thermo collectors that capture the sun’s heat energy and heats the water circulated in metal tubes to provide hot water for the firemen who live and work within the building,” (The Chicago Airport System, FlyChicago.com).