| Roof secure for the future
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Roofs not producing no electric power an no heat and break down because a littile bit snowfall have nothing to do with a secure future.
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| Photovoltaic snow free by sliding
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After the snow always slided down from the little bit descending roof to the windshield, it stands firm: The solution for a snow free photovoltaic.
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| Solar collector snow free
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On the north side is like on all other houses about one half meter snow on the roof. But the snow can not perist on the large solar collector.
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| South side with sunny sight
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Who gets the south side? Human or solar equipment? Against most rigid solar architecture, not the solar equipment but the human inhabitants.
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| Roof areas for the generation of energy
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It does not matter to south, west, east or even a little bit towards north. Each roof surface, each partway sunny facade is urgent necessary for the generation of energy.
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