Green Roofs

Northwestern Medical Center, Chicago, Ill.

No Chicago H2O Blues

Very near Lake Michigan in Chicago, Northwestern Medical Center faced several challenges in bringing a new campus building to life. Designed by Perkins+Will, the project involves a phased construction where a 14-story base building is presently under construction; a 20-story tower addition is planned for construction in five to 10 years. Since the project is built-out to all property lines there are no at-grade landscape areas, which presented a particular challenge given the city’s Dept. of Stormwater Management permit requirement that the project account the total building mass and footprint. Translation: 10,000 cubic ft. of stormwater detention was required. Further, city code requi

More

Improved Drainage

Channels cut along all four sides of new GreenGuard XPS Drainage Channel Board encourage drainage of any water that might happen to seep through a roofing assembly to the roofing membrane. The boards offer an R-Value of 5.0/in. of thickness and are available in a range of compressive strengths.

More

Vegetated Solution

Designed to give a pre-vegetated garden roof option with a fully integrated assembly the InstaGreen GT-4 Tray features a uniquely structured bottom element that provides large amounts of water storage for plant use, as well as an aeration feature that helps ensure gas exchange can occur at the bottom of the media column. This water storage area is useful where stormwater management is a consideration.

More