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.
Green roof dictionary definition.
N a roof covered with vegetation designed for its aesthetic value and to optimize energy conservation.
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A green roof or living roof is a roof of a building that is partially or completely covered with vegetation and a growing medium planted over a waterproofing membrane it may also include additional layers such as a root barrier and drainage and irrigation systems.
Green roofs are also known as vegetative or eco roofs.
They fall into three main categories extensive intensive and semi intensive.
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Green roofs synonyms green roofs pronunciation green roofs translation english dictionary definition of green roofs.
N a roof covered with vegetation designed for its aesthetic value and to optimize energy conservation collins english dictionary complete and unabridged.