Environmentally-friendly flexible thermal insulation system made from natural wood fibres


Heat Protection
STEICOflex makes a significant contribution to your comfort at home due to its excellent insulation performance in winter. STEICOflex provides optimum heat protection for your whole structure including walls, ceilings and roofs.

In addition, thanks to its low thermal conductivity and high heat capacity, STEICOflex also protects your house against overheating in summer. The high material density of approximately 50kg / m3 and the high specific heat capacity of 2100J / kgK (more than twice as high as mineral wool) provide heat insulation on the hottest days.

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STEICOflex is certified with the European quality mark – natureplus®. The natureplus®-seal of quality embodies health awareness, environmentally-friendly production, protection of limited naturals resources and their suitability of application. Products with this label are made predominantly from renewable /sustainable sources of raw materials.

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More Vitality in a Healthy Room Climate
Whether you feel really comfortable within your own four walls depends on many factors, but the right environmental climate is definitely a key factor  – a pleasant temperature, optimum humidity and fresh air.

STEICOflex consists of natural wood fibres and demonstrates all the advantages of wood as a natural building material. This flexible insulation board has a water vapour open structure, so that water vapour can pass through to the ventilated cavity – in a similar way to breathable fabrics.

Wood fibres have a much higher capacity to retain moisture than conventional insulating materials. As a result, STEICOflex makes a contribution to the regulation of the air humidity (e.g. when installed as inner wall insulation). Additionally, its high capacity to retain moisture prevents condensation risks. The entire construction is safeguarded against interstitial condensation. When using STEICOflex for both external or internal insulation sound is effectively absorbed. Furthermore, due to its strong compression resistance and expansion characteristics, STEICOflex contributes to the elimination of the airborne sound permanently by ensuring that all voids remain filled.

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The raw material for all STEICO wood fibre insulating materials originates from sustainable forestry, which complies with the strict requirements of the FSC® (Forest Stewardship Council). The goal of the FSC® is the promotion of environmentally-friendly, socially responsible and economically sustainable forest management. Consequently those using STEICOflex make a significant contribution to climate protection.

An average tree stores approximately 1 tonne of CO2 during its growth and at the same time produces 0.7 tonnes of oxygen. The CO2 stored in the trees in the form of carbon remains in the finished product – while the replanted trees continue to absorb the greenhouse gas CO2 from the atmosphere.

The raw material for STEICOflex comes from thinnings of surrounding pine forests and from saw mill residue.

No conventional formaldehyde or PMDI binders are used in the production of STEICO wood fibre insulating materials. Based on this, STEICOflex falls far below the minimum value of 0.1 parts per million for formaldehyde emissions, required by the World Health Organisation (WHO).

Due to the constant control of raw materials during the production and by third party supervision, Steico products are certified as emission free and non hazardous.


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