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Green roofs, how do they work?

The green roof  is called the top that protects the building that consists of plant substrate and plants showing multiple variants in its execution.

For Valencia ‘s Mediterranean climate , green cover brings great improvements in the comfort of buildings.

What advantages does a green roof versus a conventional one?

The values ??of thermal transmittance U, are similar to those of a conventional roof( approx. 0.65 W/m2K ), somewhat lower if the green cover has water tank ( approx. 0.50 W/m2K ), although these values ??depend on the thickness of the insulating material (thermal transmittance low means less heat loss ) .

The green roof contributes  in the THERMAL INERTIA of the building, ie capacity that makes the building take longer to lose heat in winter and win in summer.

Another feature of the green roof is that it prevents water from torrential rains saturate sanitation networks of cities and be lost. If cities fill with green roofs rainwater would not be miss, providing savings in water consumption and resource depletion . They also clean the air, so if the quantity increases it would reduce pollution in the cities.

In conclusion, green roofs return to nature what we take in constructing our buildings.

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