Residential Intensive Green Roof

A 2006 study by the university of michigan comparing costs of conventional and green roofs showed that on average installing a green roof costs about 22 00 sq.

Residential intensive green roof.

With this type of roof planting mediums are much deeper which can be between seven and 24 inches and can consist of lawn shrubs trees and perennials for example. 1 intensive green roof if you want your roof to function as a garden and have large plants and even water features then the intensive green roof is for you. Intensive green roofs these roofs are also known as rooftop gardens. The intensive residential green roof was completed with guidance from ben vaughn who led the landscapes over structures course at the university of oregon.

8 to 20 per square foot. Green roofs can help reduce energy costsfor a building by acting as another layer of insulation between the inside and outside of the roof. As a rule of thumb extensive green roofs usually support 10 25 pounds of vegetation per square foot while intensive roofs support 80 150 pounds of vegetation per square foot. This is most noticeable in intensive green roofs since there is a thicker and more consistent layer of soil which provides a higher insulating value.

They can be used for growing desert grasses and they won t require any watering after the first year. 15 to 50 per square foot.