While a demolition contractor clears debris and stabilizes the site of what the owner claimed was the largest sloped green roof in North America, a forensics team is investigating why the structure suddenly collapsed on the afternoon of Feb. 13.
The 700-ft by 50-ft area of roof that collapsed was attached to a warehouse. There were no injuries or inventory damage, said Ed Beaulieu, vice president at Aquascape, a garden pond construction and supply company headquartered in St. Charles, Ill.