How Urban Green Roofs Reduce Building Energy Use

城市绿色屋顶如何降低建筑能耗

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Green roofs consist of soil, drought-tolerant plants, drainage layers, and waterproof membranes installed atop flat or low-slope building roofs.
They act like natural insulators: summer sun heats plant leaves and soil instead of concrete or asphalt, reducing heat transfer into the building.

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