Extensive Vegetated Green Roofs

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

Extensive vegetated green roofs.

The system is delivered fully pre vegetated. There are three main types differ by cost depth of growing medium and plant type. 2 2 12 2 of fm loss prevention data sheet 1 35 that vegetated roofs be evaluated for interior fire exposure as regards a class i or class ii rating in the same manner as for conventional roofing systems on metal deck. A vegetated roof also known as a green roof living roof or eco roof is a planting system where materials and plants are installed on the top of a building.

Depending on load capabilities and other application driven requirements of your building s roof green roofs can be planted with herbs grasses flowers even trees in an exciting variety of. Although there are no precise definitions of. Fm global allows a vegetated roof over a steel deck with an appropriate fm fire test and suggests par. The greengrid modular green roof system features zero edge design while retaining modular benefits.

For a conventional roof. Vegetated roofs are often chosen based on their soil depth structural requirements and intended purpose and maintenance needs. Those plants are ideally native but other rustic species resistant to drought and or other climatic conditions of the environment can be used. 15 to 50 per square foot.

Consists of a thin layer of a rather mineral compost about 3 8 cm to 15 cm 1 in to 6 in thick in which very tough plants are being planted. Extensive systems also known as compliance roofs are considered the work horses of vegetated roofs. Green roofs are also known as vegetative or eco roofs. What is a green roof.

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. Sometimes called vegetated roofs eco roofs or living roofs green roofs offer a number of sustainable advantages on an otherwise empty unused space. The vegetation is designed to be independent as a result of selecting plants capable of developing into a stable ecosystem. 8 to 20 per square foot.

Green roofs provide shade remove heat from the air and reduce temperatures of the roof surface and surrounding air. A green roof or rooftop garden is a vegetative layer grown on a rooftop.