Double roofed homes collect rainwater, cool interiors

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Designed specifically for arid climates, Iranian BMDesign Studio’s Concave Roof system consists of two domes balanced on top of each other. The dome on top acts as a bowl for any precipitation. Countries with such high temperatures must also deal with exceptionally rapid rates of evaporation, making speed in collecting precipitation essential. Even the smallest amount of rain runs down the inside of the bowl and is centrally collected before being funneled into reservoirs located within the walls of the buildings. The water then acts as a coolant for the home, as does the double roofing system, which provides additional…

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