A living green roof reduces the costs of heating and cooling encourages the local wildlife and naturally filters the rain water it receives.
Famous green roof.
In 2001 the windy city constructed a 38 800 sq.
Green roofs can reduce stormwater runoff via water wise gardening techniques.
Chicago city hall green roof chicago ill united states.
Green roofs play a significant role in retrofitting the low impact development lid practices in urban areas.
Water is stored by the roof s substrate and.
Green roofs are sprouting up more and more on buildings around the world from private residences and schools to cultural institutions and businesses.
Some 20 000 plants of more than 150 species grace the rooftop and were selected for their ability to survive chicago s crazy weather of extreme winters and humid summers.
First planted in 2000 the city hall rooftop garden was conceived as a demonstration project to test the benefits of green roofs and how they affect temperature and air quality.
Made with hardy varieties of succulents.
A study presented at the green roofs for healthy cities conference in june 2004 cited by the epa found water runoff was reduced by over 75 during rainstorms.
The initiative started out as a demonstration project to reduce urban heat and improve air quality.
Chicago s most famous rooftop garden sits atop city hall.