ThyssenKrupp Acciai Speciali Terni develops new stainless steel coating: "Cool Roof" keeps heat out of buildings and saves energy

(PresseBox) ( Düsseldorf, )
The researchers at ThyssenKrupp Acciai Speciali Terni have managed to adapt a new type of coating to stainless steel surfaces that also helps improve energy efficiency and protect the environment. This innovative coating reflects the sun's rays more intensely than conventional materials. "Cool Roof" products from the Italian company's Vernest line are used among other things for roof tiles. The coated stainless steel prevents buildings from heating up so much, helping rooms stay cooler. As a result, air conditioning systems can be turned down, which in turn saves energy, reduces costs and lessens environmental impact. It also helps counter the increasing warming of urban areas, which is detrimental to health.

The facades and roofs of buildings need to stay looking good and last for many years after they are built. But these are not the only properties that have to be met by buildings today. The latest generation of metallic shingles and tiles offer many additional advantages, such as savings on electricity costs and reduction of harmful emissions. The "Vernest" line of panels, shingles and tiles comprises a long-lasting, corrosion-resistant stainless steel substrate coated industrially with special paints. Customers have a free choice of color. The overall appearance of these products underlines the premium quality expected of stainless steel and high-durability coatings.

In addition to standard polyester coatings, ThyssenKrupp Acciai Speciali Terni also offers its Vernest "Cool Roof" products to architects and building companies for use in their projects. "Cool Roof" paints contain pigments that reflect the infrared portion of the solar spectrum very effectively, preventing the greater part of the solar heat from being conducted into the building. Laboratory and practical tests show that buildings covered with Vernest "Cool Roof" coatings display a temperature difference of up to eight degrees Celsius compared with buildings covered with a standard polyester coating of the same color. This allows significant savings on indoor cooling costs of up to 50 percent according to recent studies carried out in the USA. Added to this is the reduction in CO2 emissions which would otherwise have been caused by the generation of the electricity needed to power the air conditioning systems.

Moreover, "Cool Roof" construction elements attached to large horizontal and vertical surfaces help limit the spread of so-called "urban heat islands", a phenomenon which is increasingly affecting large cities during summer heat waves, and not just in Mediterranean countries. In addition to the stress and health problems caused by extreme temperatures, it has been found that the intensity of the photochemical smog is increased.

Thanks to their increased resistance to ultraviolet rays, "Cool Roof" coatings are also less susceptible to color fading. "That gives them a much longer lifecycle than standard products," says Dr. Marcus Albrecht, head of research and development at ThyssenKrupp Acciai Speciali Terni. The Italian company produces the stainless steel substrate at its Terni plant, applies the "Cool Roof" coating and cuts the material to size, providing optimum service to customers.
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