Check out my post. http://greenmaltese.com/2011/12/green-roofs-in-indianapolis-indiana/
To learn more about Green Roofs come to my class @ FDIC 2012.
Hazards of Modern Roofs
Lieutenant/Training Officer John Shafer, Greencastle (IN) Fire Department
The class will examine trends and methods in modern building construction with an emphasis on roofs, their direct relationship to vertical ventilation, structural firefighting operations, and firefighter survivability. Inherent roof construction features and hazards that directly influence truck company work will be the main focus, along with green roofs, methods, and exotic materials that are used to achieve green standards, and the potential hazards that they present to fire service personnel. Many of these materials such as recycled rubber shingles, solar panels, and green (garden) roofs are not common knowledge to most fire service personnel.
Stay Safe and see you at FDIC
Lt. John Shafer