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.
Green roof and nursiers differences.
Integrating a green roof into a historic building rehabilitation project may appear to be an easy solution to reducing the urban heat island effect improving storm water management and improving the energy efficiency and sustainability of the building.
However there are regional differences and there is a variety of different programmes.
8 to 20 per square foot.
The higher upfront costs of installing a.
Several communities in germany encourage green roofs by providing grants loans or other support.
Having a green roof can increase the lifespan of the roof and lower utility bills at the same time.
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.
For a conventional roof.
However while there can be many benefits to a green roof there are specific issues that.
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.
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.
A green roof also can be installed over an existing roof provided the underlying roof structure and membranes are in sound condition.