Green Roof Albedo

On the contrary green roofs recorded an equivalent albedo of 0 7 0 85 gaffin et al 2006.

Green roof albedo.

The new concrete is a whitish gray color that is able to reflect sunlight and keep not only the roads cooler but also the adjacent buildings. 2006 also made a comparison of temperatures of the subsurface the conventional rooftop level and the green roof surface. In contrast to conventional roofs these kind are specifically designed to reduce internal building temperature by reflecting the sun s uv rays. Rooftop gardens and green roof systems such as the stormcap create a buffer preventing heat from entering the building.

Sustainable roofing glossary albedo. 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. One way to increase the albedo of a roof is to plant vegetation. Ultimately the albedo of a green roof is about twice higher than the albedos found for dark roofing surfaces.

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.