What are green roofs?
A green roof is a living roof. There are two broad types of green roofs: Extensive green roof: A roof covered with low growing vegetation providing economic, environmental and aesthetic benefits. Extensive green roofs are a light weight, low maintenance and an eco-sensitive alternative to conventional roofing. The depth of the growing medium is between three and six inches. Intensive green roof: A roof substantially covered by a garden growing in over six inches of growing medium. An intensive green roof is like transposing a garden from the ground up onto the roof. It is high maintenance and the plants are generally larger. An intensive green roof is generally accessible to visitors. Image Benefits of a green roof: • Roof lasts longer than a conventional roof because it is protected from UV light.
