Extensive Green Roof And Intensive Green Roof

For a conventional roof.

Extensive green roof and intensive green roof. 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. In addition to the mosses grasses and sedum of extensive roofs semi intensive plantings include herbs flowering plants taller grasses and small shrubs. These systems are ideal for efficient stormwater.

They fall into three main categories extensive intensive and semi intensive. It also allows for a formal garden to be installed with paths grass lawn and flowers or pot plants. 8 to 20 per square foot. A green roof is a layer of vegetation planted over a waterproofing system that is installed on top of a flat or slightly sloped roof.

Green roofs are also known as vegetative or eco roofs. Extensive green roofs. A semi intensive green roof can give rise to a richer ecology with more diverse plant and animal species. 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.

What is a green roof. Extensive green roof an extensive green roof system is characterized of its vegetation ranging from sedums to small grasses herbs and flowering herbaceous plants which need little maintenance and no permanent irrigation system the growing medium depth for an extensive green roof system is typically 6 inches or less.