Along with the makeup and depth of the growing medium selecting the right plants is crucial to the success of a green roof.
Extensive green roof examples.
For a conventional roof.
15 to 50 per square foot.
The bronx county courthouse features a 1 inch drainage layer with a 2 5 3 inch deep growing medium profile the green roof is composed of a mix of sedums and hardy herbs with a sweeping crescent of small grasses.
The several layers that make up a green roof filter the water and remove pollutants before sending the water to a downspout and eventually back to rivers and streams.
It also allows for a formal garden to be installed with paths grass lawn and flowers or pot plants.
The incredible set up of this green roof supports flora ranging from wetland.
Examples of semi intensive green roofs produced by vegetal i d.
8 to 20 per square foot.
The plots are used to conduct extensive research on how different.
Plants for green roofs.
A semi intensive green roof has a thicker layer of growing medium in order to broaden the range of plants but involves more maintenance and irrigation systems are sometimes essential.
The plants chosen must be appropriate for the roof type extensive intensive or semi intensive.
The peggy notebeart museum features a series of green roofs ranging from a sloped extensive green roof to an intensive green roof.
Examples of extensive green roofs produced by vegetal i d.
The components of a green roof.
The intensive portion features a 2 10 inch drainage layer and a 2 5 to 8 inch growing media layer exhibits diverse examples of habitats.
Extensive green roofs are generally made up of a very thin layer of soil or other planting medium with shallow root plants like sedum mosses and grasses.
Climate clearly plays a major role in choosing the best plants for a green 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.
Click through these spectacular examples from san francisco to singapore to discover how top.
Green roofs are sprouting up.
The two kinds of green roofs.
Examples of extensive green roofs.
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.
A semi intensive green roof can give rise to a richer ecology with more diverse plant and animal species.