The painting that transforms the sun into air conditioning is the discovery that researchers have made. The more sunshine it receives, the more it refreshes the walls. All this without electricity. We explain the concept to you.
Improve your interior
What if the Sun becomes an air conditioner?
This is the question that can be asked with this high-tech paint that cools down when exposed to sunlight. It cools the interior of your home by repelling the rays emitted by the Sun. In hot regions, such as North Africa or Greece, this millennial practice makes it possible, by reflecting sunlight, to air-condition the interior of buildings, especially during the height of summer.
The company that developed this product is Israeli and is called SolCold. The innovation takes the form of a coating that can be painted on the roofs of buildings, which is then activated by the sun.
Painting a known method for cooling
If this technology developed by SolCold is a first in the building industry, the technology itself is not at a standstill. Recently, American authorities used this paint to cool urban centers. In Los Angeles, for example, roads were coated with white paint to help cool the area as record temperatures skyrocketed.
Cooling all buildings in this way would save a lot of money. This paint can drop the temperature of a room by 10° in direct sunlight! It means that in summer, we will need less cooling and therefore we will save energy.
Earth and Space
The use of paint could not be limited to our planet: it could solve the major challenge of cooling objects in space. It may seem counter-intuitive given the freezing temperatures, but the problem is that there is no air to evacuate heat from an object.
Currently, the ISS uses a reflective fabric to avoid sunlight and internal heat exchangers to remove excess heat produced by the equipment. This technology could satisfy life on Earth and in space.
However, it is not yet marketed. But we already know it won’t be cheap. It will cost about 400$ per 100 square meters. That is 3 to 4 times more than a traditional exterior paint. But the prices of this ecological and economic innovation are expected to drop rapidly.