Using green roof technology in combination with UTC enhancement to mitigate D.C. heat island effect; Washington, D.C.

Using green roof technology to mitigate D.C. heat island effect

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Other than increasing D.C.’s tree canopy, another method to mitigate the heat island effect is to construct green roofs, or a vegetative layer on the roof of a building. Also known as “rooftop gardens” or “eco-roofs”, attributes include increased vegetated cover, building temperature regulation (resulting in energy savings for heating and cooling costs as well as need for insulation); enhanced rooftop durability and less maintenance needs; reduced stormwater runoff; water filtration and restoration of natural habitats, among others.