Blue/green roofs: Solving four urban problems in one solution
Blue-green roofs have the potential to solve four urban problems in one go: increased water collection and reuse; sustainable energy production; building insulation and thriving eco-systems.
The potential uses for rooftops in urban environments tend to fall into a number of categories. Often, they are simply roof spaces, perhaps with telecoms aerials. Sometimes, they are utilised for solar panels to make the most of their lofty position, providing a green energy source to the buildings they sit atop.
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