Both techniques may partially or completely cover a roof.
Green roof and nursiers differences.
Green roofs are planted.
Desert grasses and succulent plants.
Suitable for low sloped residential roofs and retrofits.
A green roof is the practice of growing vegetation directly on a roof over a waterproof membrane.
Extensive green roofs designed for environmental solutions.
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.
For a conventional roof.
Both benefit the environment.
But the difference between a green roof and a rooftop garden is kind of like the difference between a turf lawn and a patio garden bed with trees and shrubs.
A green roof like your lawn is generally flat thin 4 6 of soil and planted with a family of short plants called sedum.
Green roofs have started sprouting in urban areas everywhere giving some of our favorite hardy succulents new opportunities to shine.
There are three types of green roofs.
Snodgrass june 1 2006 there is a new landscape emerging in north america still largely unseen but gaining in popularity.
15 to 50 per square foot.
That landscape is the green roof.
Ideal for large flat roof buildings and apartments.
They also reflect sunlight but can potentially provide many additional benefits.
3 6 of light weight growing medium.
The term white roof typically refers to a roof membrane coated with a white water based acrylic polymer these roofs reflect sunlight and can help reduce energy demand during summer months.
8 to 20 per square foot.
A roof garden is a similar technique that places container gardens on a roof.
Both may feature recreational facilities or commercial facilities such as a rooftop cafe.