by Rebecca Walker — June 15, 2009—The green roof industry association Green Roofs for Healthy Cities (GRHC) recently announced results of a member survey that found that more than 3.1 million square feet of green roofs were installed in 2008, a 35 percent growth over the previous year.
At the same time, the city of Toronto, where GRHC is based, adopted a mandatory green roof law yesterday, requiring 50 percent of the area of all new roofs be covered with greenery.
The GRHC’s surveys indicated that the city of Chicago, Illinois, which has long been a stronghold of green roofs, constructed the most overall square feet of green roofs in 2008, with more than 548,000 square feet installed.
More details about the green roof law, as well as the growth of green roofs in North America, can be found at the Web site.
