Green Roof Mat - Florida - Root Barrier and Cut Away View
Extensive Green Roof Mat System Cutaway Section
Here is an interesting photo of a Florida extensive green roof - 2-4" thick on a 5/12 slope (built in 2005) with a HDPE root barrier. A portion of the vegetated roof has been removed for root barrier inspection and root behavioral studies. The plants are growing in a soil filled woven mat and the roots are thick into the mat. Once the roots reach the liner they turn and grow parallel with the liner's surface.