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Newly invented roof coating keeps houses warm in winter and cool in summer

 Last Update: 2021-12-24
 Source: Internet
 Author: User

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American scientists have invented a roof coating that allows the sun's heat to penetrate the material and transmit it to the house when the temperature is lower than 25 degrees Celsius; when it exceeds 25 degrees, it reflects the heat back into the air to keep the house cool

The results of this research were published in the journal Science

Research in recent years has invented a variety of thermal insulation coatings, some in the form of ultra-white paint, which can reflect the heat irradiated on the roof back into the air

The main component of this material is vanadium dioxide

However, the roof has to heat up to 67 degrees Celsius to block the heat, which is already too hot

The research group finally found that adding tungsten to this material through doping technology can achieve this effect

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