Extensive Vegetated Green Roofs

Green roofs are also known as vegetative or eco roofs.

Extensive vegetated green roofs.

The greengrid modular green roof system features zero edge design while retaining modular benefits. A green roof or rooftop garden is a vegetative layer grown on a rooftop. Fm global allows a vegetated roof over a steel deck with an appropriate fm fire test and suggests par. The system is delivered fully pre vegetated.

They fall into three main categories extensive intensive and semi intensive. Although there are no precise definitions of. A properly designed and installed extensive green roof system can cost 108 248 m 2 10 23 sq ft while an intensive green roof costs 355 2 368 m 2 33 220 sq ft however since most of the materials used to build the green roof can be salvaged it is estimated that the cost of replacing a green roof is generally one third of the initial installation costs. Extensive systems also known as compliance roofs are considered the work horses of vegetated roofs.

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. There are three main types differ by cost depth of growing medium and plant type. 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. What is a green roof.

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. Using green roofs in cities or other built environments with limited vegetation can moderate the heat island effect particularly during the day. Those plants are ideally native but other rustic species resistant to drought and or other climatic conditions of the environment can be used. Sometimes called vegetated roofs eco roofs or living roofs green roofs offer a number of sustainable advantages on an otherwise empty unused space.

15 to 50 per square foot. 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. Green roofs provide shade remove heat from the air and reduce temperatures of the roof surface and surrounding air. 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.

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. 8 to 20 per square foot.