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Powder Coatings

Alesta® Cool protects insulation materials

What's the effect of temperature on insulates behind cladding?

Every colour reflects radiation differently. Alesta® Cool improves the reflection of infrared light, which helps lower the temperature of the painted surface. This technical innovation ensures there is less heat transfer and less mechanical load for the metal. This results in better colour stability, gloss, and mechanical properties of the film. Alesta® Cool formulations can reduce the surface temperature by ±20%.

But what is the effect of lower warming in a well-insulated building and what directly affects the warming of the façade cladding on the insulation?

The insulation materials that are in use can only handle a certain temperature. For example, this is 90°C for EPS foam, 80°C for XPS foam, 90°C for “hot-melt” PU adhesives, and 80°C for edge-seal tapes. The insulant comes loose, deforms and delaminates at high temperatures on south-facing façades. Insulation material is often glued using adhesive that cannot handle such temperatures. In addition, panels can bulge, expand, exert pressure on the clamping frame, etc.

On hot summer days, the surface temperature of black façade panels can exceed 80°C. Alesta® Cool is an ideal solution for protecting insulation in these exact situations. And it is also ideal for sunny, winter days when surface temperatures peak and then cool dramatically within minutes due to wind, rain or snow. The maximum temperature swing may be as much as 50°C within 10 minutes. Such swings can cause irreversible effects on insulation materials.

The Alesta® Cool quality range comes in several dark colours with a high-gloss, semi-gloss, matte or fine texture finish. In addition, any colour can be produced within a short period of time!