Extensive Green Roof Definition

They fall into three main categories extensive intensive and semi intensive.

Extensive green roof definition.

These roofs differ from each other in the thickness of the structure its weight and. It also allows for a formal garden to be installed with paths grass lawn and flowers or pot plants. Green roofs are also known as vegetative or eco roofs. 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. A green roof has many advantages. 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. Although there are no precise definitions of.

These systems are ideal for efficient stormwater. Difference extensive and intensive green roofs. 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.

For a conventional 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. What is a green roof. 8 to 20 per square foot.

A vegetated landscape built up from a series of layers that are installed on a roof surface as loose laid or modular that is installed layer by layer on the roof or as pre prepared layers in trays green roofs are constructed for multiple reasons as spaces for people to use as architectural features to add. An extensive green roof is a lightweight low maintenance option that typically does not require irrigation and consists primarily of sedum. What is the difference between an extensive and intensive green roof. A green roof is a flat roof that may be systematically planted with for example varieties of sedum moss or grass but also with perennials and even bushes and trees.

It improves the appearance of a building and in big cities especially it serves as a substitute garden thus boosting the residential value.