Over 60 per cent of roofs in the French capital are made of the sheet metal.
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00:00We have a roof that is equivalent to this one to give you an idea.
00:17It can go up, the zinc roofs, up to 60, 70 degrees during a heatwave.
00:23So, inevitably, it has a crazy effect.
00:31Do you think zinc and urban overheating are compatible?
00:35Of course, it is completely compatible.
00:37The only thing you need with zinc roofs, as I said, is insulation underneath.
00:40If there is no insulation, whether it is a tile roof, hardwood, whatever you want, it will be a thermal boiler underneath.
00:45We have developed a platform system with metal pilots who come through the zinc to connect to the building's points.
01:05We have about 17 degrees of difference between the parts that are shaded and the parts that are exposed to the sun when we are inside the building.