Extensive Green Roof Examples

It also allows for a formal garden to be installed with paths grass lawn and flowers or pot plants.

Extensive green roof examples.

Examples of extensive green roofs produced by vegetal i d. 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. The components of a green roof. The peggy notebeart museum features a series of green roofs ranging from a sloped extensive green roof to an intensive green roof.

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 incredible set up of this green roof supports flora ranging from wetland. 8 to 20 per square foot. Green roofs can absorb as much as 90 of the rain that falls on them.

Climate clearly plays a major role in choosing the best plants for a green roof. Plants for green roofs. Cincinnati civic garden center roof example rain event 12mm from july green roofs and water quantity buffam and mitchell unpublished data most extensive green roofs will reduce stormwater flows on an annual basis by 50 green roofs also delay stormwater runoff but flow dynamics depend on climate and green roof design. 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.

15 to 50 per square foot. 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. The two kinds of green roofs. Examples of extensive green roofs.

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. Click through these spectacular examples from san francisco to singapore to discover how top. The plants chosen must be appropriate for the roof type extensive intensive or semi intensive. The plots are used to conduct extensive research on how different.

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. Along with the makeup and depth of the growing medium selecting the right plants is crucial to the success of a green roof. Green roofs are sprouting up. For a conventional roof.

A semi intensive green roof can give rise to a richer ecology with more diverse plant and animal species.