Heat shield with X-black technology

NIR technology protects dark façades from overheating

NIR technology protects dark façades from overheating

In the past, very dark colours were often a challenge for manufacturers of façade coatings, as the thermal stress on such surfaces was very high. Dark-coloured finishing renders can heat up to over 80 °C - in all climate zones - which leads to considerable tension in the material structure. This is critical for the surfaces themselves, but can also damage the substrates.

Today, even dark rendered façades can be realised without risk. The key to this is the reflection of part of the solar radiation energy. Only 39 per cent of this is in the visible light range, three per cent is in the ultraviolet range and a full 58 per cent is in the infrared spectrum. The so-called NIR technology (NIR = near infrared radiation) makes use of this fact by reflecting precisely these near-infrared waves with the help of a special black pigment, special fillers and specific coloured pigment formulations. As if protected by a sunshade, the surfaces heat up 15 to 20 per cent less, so that they do not exceed the critical 65° Celsius.

Heat shield with X-black technology

NIR technology protects dark façades from overheating

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