The thermal benefits that green roofs provide may also have indirect benefits for people living or working within the building.
Green roof people.
Green roofs last longer than conventional roofs reduce energy costs with natural insulation create peaceful retreats for people and animals and absorb storm water potentially lessening the need for complex and expensive drainage systems.
However green roofs in many cases are meant to retain water over a longer period of time to slow stormwater runoff and to nourish the plants.
Green roofs can provide a wide range of public and private benefits and have been successfully installed in countries around the world.
Green roof development involves the creation of contained green space on top of a human made structure.
It is even more important that the roof covering be watertight to prevent leaks into the building.
This green space could be below at or above grade but in all cases it exists separate from the ground.
This has not been researched but anecdotal evidence from germany in the late 1990s is of interest.
Green roofs for healthy cities grhc is the north american industry association for the green roof and wall sectors.