CRCA - Chicago Roofing Contractors Association
 

Profile: Chicago Transit Authority
Rosemont Substation

Bennett & Brosseau Roofing

Client: Chicago Transit Authority and Chicago Department of Environment
Location: Chicago, IL
Size: 3,100 ft2
Installation Contractor: Bennett & Brosseau Roofing
Landscape Design:
WESTON
Rooftop System: Extensive
Status: Completed fall 2002

Project Narrative:
One of many GreenGrid™ systems to be installed in Chicago is on a Chicago Transit Authority (CTA) substation along the CTA’s elevated Red Line. The new green roof is plainly visible to the thousands of passengers who ride the elevated train daily commuting to and from downtown. The 3,100 ft2 rooftop garden was installed using the GreenGrid™ 4-inch modules pre-filled with a lightweight soil media and vegetation, and the GreenGrid™ pavers. Installation was completed in 2 1/2 days, including placement of 318 GreenGrid™ 4-inch modules and 128 GreenGrid™ pavers. Rooftop vegetation included Sedum spurium ‘Tricolor’, Sedum kamtschaticum, Sedum spurium ‘Fuldaglut’, and Festuca amethystina ‘Superba’. Species were aligned according the rendering pictured below and will be visible for years to come. All work for the CTA rooftop garden was completed on time, within the allocated budget, and without any health and safety incidents.

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