2006 also made a comparison of temperatures of the subsurface the conventional rooftop level and the green roof surface.
Green roof albedo.
On the contrary green roofs recorded an equivalent albedo of 0 7 0 85 gaffin et al 2006.
Rooftop gardens and green roof systems such as the stormcap create a buffer preventing heat from entering the building.
The city of chicago has also attempted to make a change by creating a network of green alleyways by removing the former dark pavement and replacing it with albedo concrete.
One of the more recent advancements in the field of green commercial construction are what are known as cool or albedo roofs.
Sustainable roofing glossary albedo.
Ultimately the albedo of a green roof is about twice higher than the albedos found for dark roofing surfaces.
In contrast to conventional roofs these kind are specifically designed to reduce internal building temperature by reflecting the sun s uv rays.
Although the primary focus of a green roof is not simply improving the surface albedo like the intentions of cool roofs it is still a significant improvement from a traditional black roof.
They have a positive impact on temperature both within the building and outside as well as improving air quality.