Water is stored by the roof s substrate and.
Famous green roof.
Foot 3 530 meter green roof atop an 11 story high building.
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.
Green roofs can reduce stormwater runoff via water wise gardening techniques.
Green roofs play a significant role in retrofitting the low impact development lid practices in urban areas.
Chicago s most famous rooftop garden sits atop city hall.
In 2001 the windy city constructed a 38 800 sq.
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.
Green roof design while the practice of building green roofs is centuries old it has experienced a renaissance as the structural philosophy of the future.
Chicago city hall green roof chicago ill united states.
A living green roof reduces the costs of heating and cooling encourages the local wildlife and naturally filters the rain water it receives.
Made with hardy varieties of succulents.
The initiative started out as a demonstration project to reduce urban heat and improve air quality.