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What is a green roof? In a nutshell, green roofs are vegetated roof covers which include plants, growing media, a waterproofing layer, and drainage. There are two types of green roofs: intensive and extensive. With a soil depth of a foot or more, intensive green roofs can sustain a wide range of plant species, but require substantial structural elements to support the weight, and require more maintenance. An extensive green roof has a much shallower soil depth (usually only 2 to 4 inches deep) and is planted with hardy, drought-resistant plants.
For more information about green roofs, read our newsletter about green roofs which highlights a green roof project designed by MSP and visit the sites below: |
Green Design & Sustainability
