A newly installed roof on top of the Osborne Association building in the South Bronx is projected to manage more than 100,000 gallons of rainwater and will provide a habitat for bees that will supply honey for the association’s catering business.
Courtesy of Hazen and Sawyer
The rooftop design, by Hazen and Sawyer, is being promoted as “blue and green” because a water barrier system joins vegetation on the top of the building. Trays for water detention are expected to reduce runoff from the building’s roof area by 32 percent during a typical storm, helping to mitigate combined sewer overflow into the East River. Other trays holding soil grow vegetation that provides a habitat for bee colonies located on an adjacent roof.
The shallow tray design reduced costs and lessened the system’s weight, making it possible to install on the older commercial building. The project covers 7,200 square feet of the 18,000-square-foot roof, according to the Wall Street Journal.
The roof shelters the Osborne Association—an organization that offers services to the formerly incarcerated and their families. Osborne plans to use the roof to launch a honey business in 2014, which will supply honey to its current catering business and expand employment opportunities for former prison inmates. Elizabeth Gaynes, executive director of the Osborne Association, stated in a press release that the combined social and environmental benefits of the project “have resulted in a double bottom line.”
Copyright 2013 by BuildingGreen Inc.