The city of Chicago is opening up furthering grant support for green roof retrofits. Chicago’s City Hall has a retrofit green roof, and since its installation in 2001 the city has become a national leader in the green roof movement. These systems generally draw upon the drainage, erosion control, rainwater collection and membrane sealing systems developed in geotechnical applications. Geosynthetics are involved plentifully. Read more about the new initiative in Architectural Record (link below).

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