As a roof type that requires frequent maintenance intensive systems can be thought of as gardens on a roof in contrast with an extensive green roof there are almost unlimited possibilities.
Green roof and nursiers differences.
This system requires some maintenance from time to time these green roof systems lie between the extensive and the intensive and usually include a mix of plant types.
However while there can be many benefits to a green roof there are specific issues that.
The higher upfront costs of installing a.
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.
This is most noticeable in intensive green roofs since there is a thicker and more consistent layer of soil which provides a higher insulating value.
8 to 20 per square foot.
Having a green roof can increase the lifespan of the roof and lower utility bills at the same time.
However there are regional differences and there is a variety of different programmes.
Green roofs can help reduce energy costs for a building by acting as another layer of insulation between the inside and outside of the roof.
Keep in mind that green roofs typically are not installed over the entire roof surface so the costs per square foot for a green roof apply only to the area covered.
15 to 50 per square foot.
Several communities in germany encourage green roofs by providing grants loans or other support.