Green Roof means the installation of vegetated roofs and site/building systems that either reduce the amount of stormwater runoff and/or reuse stormwater on-Site or within buildings. Also known as Green Roof tops, vegetated roofs, planted roofs, rooftop gardens, or eco-roofs which utilize a variety of techniques for growing vegetation on a building rooftop.
“Extensive” Green Roofs are usually lightweight green roof retrofits on existing building roofs, and cannot usually accommodate foot traffic. “Intensive” Green Roofs usually involve a deeper soil layer, and are easier to incorporate into new building designs.