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Insulation in non-frame structures

The composite thermal insulation system can be selected from a wide range of possible insulation materials. The market leaders are polystyrene insulation foams, which have been continually improved in terms of thermal conductivity in recent years, and which are offered by most producers with a thermal conductivity λ of as little as 0.032 W/mK. The same applies to insulation consisting of artificial mineral wool. Mineral foam insulation is a purely mineral insulation variant with a slightly less favorable thermal conductivity λ of approx. 0.04 W/mK.

Insulation materials from renewable raw materials, such as wood fibre insulation materials, generally have a thermal conductivity λ in the range 0.035 to 0.05 W/mK and feature in many ETICS suppliers’ product range.

For every single building an individual decision must be made about which insulation material comes closest to true sustainability. However, a U value of 0.12 to 0.16 W/m²K should not be exceeded in new buildings.

Fire protection measures must be taken in line with the manufacturer’s instructions or as per certification. If carried out properly, the systems offer a high degree of safety in the case of fire.

In general it can be said that the “recognized rules of engineering” apply to implementation. The box below lists relevant norms and guidelines. In addition, the manufacturer’s instructions for implementing the ETICS should be obeyed to the letter.