There are many simple ways in which cities can reduce their heat island effect. One way is to plant more trees and vegetation throughout the city. Trees provide shade that helps to cool homes and buildings and can lower energy bills. Another solution is to utilitize “cool” roofs and pavements. An example of a cool roof would be a vegetative green roof, or a roof that is designed to reflect light. For example, darker colors tend to absorb more heat than lighter colors. This also applies to pavement.
Cool roof installation is a great solution to lessening the heat island effect of cities. Cool roofs have a higher albedo, which means that they are more reflective so they absorb less heat. In the summer, they also keep buildings much cooler, saving on energy which would also lower emissions that cause air pollution. Cities could also use cool pavement, which reflects solar energy and increases water absorption.
I think, “sdasher” might be referring to green roofs. Green roofs are typically flat roofs over which waterproof membrane, gravel, and growing media are spread. Drought and heat tolerant plants are then planted. These roofs provide lower heat absorption as well as habitat for nesting birds and insects. Green roofs are usually installed in new buildings because of the extensive support that they require. However they may be retrofitted onto existing roofs with some structural adjustments.
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