Our advanced coatings reflect infrared radiations, reduce roof surface temperature, lower cooling demand, and extend life – delivering performance you can measure.
The use of heat-reflective coating can reduce the energy demand of cooling systems. By lowering surface and indoor heat load, less energy is required to maintain the desired indoor climate. Over the long term, this can result in significant cost savings.
By reducing the thermal load on cooling equipment, the coating can help extend the service life of HVAC and cooling units. More efficient operation, shorter operating periods, and reduced temperature fluctuations allow the equipment to function more reliably over a longer period of time.
Lower energy consumption contributes to reduced carbon dioxide emissions. This is especially important from an environmental perspective, as reduced cooling demand leads to lower electricity use and, as a result, fewer greenhouse gas emissions.
Heat-reflective performance of an anthracite grey (RAL 7016) surface with single-layer and two-layer heat-reflective coating systems: The anthracite grey color was developed using seven different pigment compositions. The heat-reflective performance of these formulations is shown in the diagrams below. On the horizontal axis, the orange-highlighted range indicates the infrared (IR) spectrum, which is primarily responsible for heat build-up. The vertical axis shows the level of reflection, or reflectance, achieved by each coating system.
The conventional coating achieved a reflectance value of 6%, while the best result obtained with the two-layer heat-reflective coating system reached 87%. In the diagram, these values are shown on the white FR substrate. The single-layer reflective coating applied to the black FE substrate achieved a reflectance value of 49%. Based on these results, the best performance was achieved with the two-layer coating system applied to the white FR substrate.
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The coating effectively protects surfaces against the harmful effects of UV radiation, helping to extend their service life. UV exposure can often damage roofing materials and other exterior surfaces, while heat-reflective coating helps minimize this degradation.
The use of heat-reflective coating does not alter the roof’s fire safety classification, providing a safe solution for thermal protection. This is especially important for buildings where fire safety requirements are strict.
Heat-reflective coating provides an effective solution for controlling the temperature of exposed surfaces. Surfaces exposed to sunlight can transmit, reflect, or absorb solar radiation.
The infrared (IR) rays in sunlight are primarily responsible for heat build-up. This heat can be useful in some cases, but it can also lead to excessive and uncomfortable overheating.
If the coating system absorbs these infrared rays, the surface heats up. If it reflects them, the surface temperature remains much lower and closer to the temperature of the surrounding air.
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Everyone has experienced that white objects heat up less than black or dark-colored surfaces. As a result of our development, this limitation can be significantly reduced.
If we want to use a wide range of colors, including darker shades, in the built environment without causing excessive heat build-up, special IR-reflective coatings are required.
As a result of our project, we developed a product family available in the main colors of the RAL color scale. These coatings also offer outstanding UV-B resistance and provide better heat-reflective performance than conventional paints.
Surfaces treated with this type of coating heat up less, which also helps reduce coating degradation. This can result in significant energy savings, while also reducing the need for repeated surface treatment and limiting the release of chemicals into the environment.
The developed coating therefore contributes to environmental protection and to the mitigation of climate change impacts, while also providing users with significant cost savings even in the short term.
The pigments used in the coating have a major influence on heat build-up. The same visible color can be produced using different pigment compositions, and these pigment systems can behave very differently when exposed to infrared radiation.
Two methods are used to reflect infrared rays:
– Self-reflective coating
This type of coating reflects infrared rays on its own, helping to reduce the temperature of the treated surface.
– Combination of an IR-reflective primer and a colored topcoat
In this system, the primer reflects infrared rays, while the colored topcoat remains transparent to infrared radiation but provides the desired color in the visible range.
This combination allows the surface to retain the required appearance while effectively reflecting heat.
