Architects should start integrating green roofs into the first parts of the design process, experts say. They note that green roofs are often added as an afterthought to finish a structure. "The truly sustainable benefits come from integrating green roofs back into storm water management, grey water recycling, increasing capacity of solar output, reducing energy costs of running air conditioning units," noted Sidonie Carpenter, president of the not-for-profit Green Roofs Australia.

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