Green Roof Meaning

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.

Green roof meaning.

Moisture retained by saturated media after free draining 40 60 typ. A roof covered with vegetation designed for its aesthetic value and to optimize energy. As a result the roof structure can require less maintenance saving the owner money in replacement costs over the long term life of the roofing system. They fall into three main categories extensive intensive and semi intensive.

Moisture retained by media that cannot be removed aka wilt point 12 18 typ. Container gardens on roofs where plants are maintained in pots are not generally considered to be true green roofs although. 8 to 20 per square foot. Green roof components growing media water holding capacity field capacity maximum water capacity astm test.

These green roofs consist of a deep growing medium that is necessary to support a full range of vegetation from groundcovers to large trees. Although there are no precise definitions of them an extensive green roof has a shallow growing medium usually less than six inches with a modest roof load limited plant diversity minimal. A green roof can increase the life expectancy of a roofing system by protecting the roofing materials from direct ultra violet radiation and extreme temperatures. Green roofs are also known as vegetative or eco roofs.

Look it up now. 15 to 50 per square foot. A green roof protects the roofing material from external influences such as the sun rain wind and temperature fluctuations and doubles or triples the life span of your roof to up to 60 years or even longer. Green roofs come in many shapes and sizes can be installed on new buildings or applied to existing roofs but in general there are two different types of green roof systems used commonly.

Meaning pronunciation translations and examples. For a conventional roof.