Intensive Green Roof Vs Extensive

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.

Intensive green roof vs extensive.

An extensive green roof is characterized by a thinner layer of soil and smaller plants. Extensive or intensive both types can be created on sloped green roofs and solar green roof s click on text to learn. The distinction is based on the kind of plant involved. In addition to the mosses grasses and sedum of extensive roofs semi intensive plantings include herbs flowering plants taller grasses and small shrubs.

A semi intensive green roof can give rise to a richer ecology with more diverse plant and animal species. Due to their light weight and low profile they require less structural support and can be used on roofs with a slope of 30 b0 and higher. These systems range in thickness from 2 6 94 and weigh approximately 15 30lbs per sq ft. It also allows for a formal garden to be installed with paths grass lawn and flowers or pot plants.

The plants that are mostly used on extensively planted roofs include grasses mosses herbs and succulents. 8 to 20 per square foot. Intensive includes a thick layer of soil that can support large vegetation such as small trees. 15 to 50 per square foot.

Semi intensive green roofs require a deeper soil layer but the payoff is in the types of plantings that can be used. For a conventional roof. A green roof comes in two varieties. Intensive planting there are two ways of planting a roof.

Typically these roofs will have more soil and some small shrubs as well as the low growing wildflowers and sedums found on an extensive roof. A green roof with a lightweight solution of 30 kg m2 is only possible with sedum vegetation and a green roof with a weight of 220 kg m2 is composed of a combination of sedum grasses herbs or host plants. Gardening is the last bastion of the patient as nature cannot be hurried. Green roof technology has the expertise to realize the impossible and the incredible if you can dream it we can create it and keep in mind.