Green Roof Systems

What is Green Roof

Green roofs are partially or completely covered with a growing medium and vegetation, positioned over a waterproofing membrane and may also include water retention, drainage and irrigation systems. Green roofs are categorized into:

Intensive
300 mm growing media, irrigation with a wide variety of shrubs, grass and tree species on slopes <3%

Extensive
300 mm growing media, minimal irrigation with hardy, low growing plant and ground cover species on slopes <30%