Green Roof
Extensive Green Roof: Growing medium light weight, less than 6" deep, predominantly inorganic material no irrigation.
Semi-intensive: Growing medium lightweight, less than 12" deep,higher soil/organic content, irrigation may be present.
Extensive Green Roof: Growing medium light weight, less than 6" deep, predominantly inorganic material no irrigation.
Semi-intensive: Growing medium lightweight, less than 12" deep,higher soil/organic content, irrigation may be present.