The garden also helps conserves energy and reduces stormwater runoff. The Chicago green roof improves air quality by using excess carbon dioxide to produce oxygen. The garden is home to over 20,000 plants of over 150 different species, mostly prairie plants native to Chicago (shrubs, vines, trees, etc.) These plants thrive in the windy and arid conditions Chicago has each year. The project tested the benefits of green roofs and how they affect temperature and air quality. The rooftop was first planted in 2000 as a demonstration project for the City’s Urban Heat Island Initiative. Check out some of the green roof designs from innovative architects striving for beauty and sustainability.Ĭhicago’s City Hall is an 11-story building home to the most famous rooftop garden in the city. While green roof examples vary, they all contain the same basic components: waterproofing, root barrier, water retention and drainage, growing mediums and plants. There is an assortment of unique green roof designs across the country, some even open to the public. Green roofs don’t just support the roofing system, they’re also incredible to look at. This in turn will also lower your energy bill. Green roofs have the capabilities to keep the interior of your building cool which means you can use your HVAC system less. Commercial HVAC systems emit high levels of greenhouse gases from fossil fuel combustion. Green roofs can even protect your roofing system from harsh UV rays and extend the roof’s lifespan.Ī big reason property owners are switching to green roofs is their impact on the environment. They help keep buildings dry and prevent pooling or standing water. Green roofs are composed of a thin layer of vegetation installed on a traditional flat or pitched roof. Green roofs, also called vegetated or living roofs, are an environmentally friendly type of sustainable roofing commercial buildings all over the world are beginning to use. 8 Outstanding Green Roof Examples & Designs in the USA
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