Extensive Green Roof V 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.

Extensive green roof v intensive green roof.

A semi intensive green roof can give rise to a richer ecology with more diverse plant and animal species. The plants that are mostly used on extensively planted roofs include grasses mosses herbs and. 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. An extensive green roof is characterized by a thinner layer of soil and smaller plants.

These systems range in thickness from 2 6 94 and weigh approximately 15 30lbs per sq ft. Planted roofs create living space for 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. The distinction is based on the kind of plant involved.

Extensive green roof systems extensive systems are simpler and lighter weight than intensive systems. 15 to 50 per square foot. Intensive includes a thick layer of soil that can support large vegetation such as small trees. 8 to 20 per square foot.

Intensive vs extensive a green roof comes in two varieties. It also allows for a formal garden to be installed with paths grass lawn and flowers or pot plants. There are two ways of planting a roof.