AMA Plaza

Chicago, Illinois

AREA 6,400 sf | VARIETY Sedum Mix | DEPTH 5 inches | WEIGHT 40 lbs / sf

AMA Plaza is a 52-story commercial tower located in downtown Chicago. The building, designed by architect Ludwig Mies van der Rohe, has been declared a Chicago Landmark and has been inducted into the National Register of Historic Places. Situated on the Chicago River, the building has been home to the offices of such companies as IBM and Jenner & Block. As part of a commitment towards LEED for Existing Buildings: Operations & Maintenance, building ownership has sought to update the structure to meet accredited standards of sustainability and environmental responsibility. The green roof helps mitigate the urban heat island effect and stormwater runoff, among other environmental benefits.

In 2012, Omni Ecosystems provided a fully-planted, 5-inch-deep tray system for a 6,400-square-foot sedum green roof. In the extreme environment of skyscraper rooftops, wind, scour, and dryness stand as obstacles to the health of plants. Accordingly, the irrigation system, unique to Omni Ecosystems green roof trays, helps ensure plant success and vitality in such harsh conditions. An automatic control station equipped with wind and rain sensors regulates watering time and duration for on-going health and stability of the plants.



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