Extensive Green Roof Examples

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 examples.

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. 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. Green roofs are sprouting up. 15 to 50 per square foot.

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. Climate clearly plays a major role in choosing the best plants for a green roof. The two kinds of green roofs. Green roofs can absorb as much as 90 of the rain that falls on them.

Click through these spectacular examples from san francisco to singapore to discover how top. Examples of extensive green roofs produced by vegetal i d. 8 to 20 per square foot. A semi intensive green roof can give rise to a richer ecology with more diverse plant and animal species.

The soil is usually not more than 5 deep and is sometimes contained by a tray system which provides a barrier to excessive growth protects the roof membrane and. The peggy notebeart museum features a series of green roofs ranging from a sloped extensive green roof to an intensive green roof. The incredible set up of this green roof supports flora ranging from wetland. It also allows for a formal garden to be installed with paths grass lawn and flowers or pot plants.

Plants for green roofs. The plants chosen must be appropriate for the roof type extensive intensive or semi intensive. 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. The components of a green roof.

Examples of extensive green roofs. Along with the makeup and depth of the growing medium selecting the right plants is crucial to the success of a green roof. For a conventional roof. The plots are used to conduct extensive research on how different.

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.