Almost always used for new construction intensive green roofs can be anything from a public garden to an entire park as is the case with the world s largest green roof millennium park in chicago which is 24 5 acres of landscaping on top of two subterranean parking garages.
Extensive green roof v intensive green roof.
The green roof as a habitat.
For a conventional roof.
There are two ways of planting a roof.
8 to 20 per square foot.
Intensive includes a thick layer of soil that can support large vegetation such as small trees.
The distinction is based on the kind of plant involved.
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.
15 to 50 per square foot.
It also allows for a formal garden to be installed with paths grass lawn and flowers or pot plants.
Planted roofs create living space for animal species.
These systems range in thickness from 2 6 94 and weigh approximately 15 30lbs per sq ft.
Intensive vs extensive a green roof comes in two varieties.
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.
Extensive green roof systems extensive systems are simpler and lighter weight than intensive systems.