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Isocell Cellulose 

ISOCELL is natural thermal insulation made from cellulose fibres created by recycling clean, unmixed newspapers. Coarsely fibered, mixed with mineral salts and ground in a mill, make it rot-proof and fire-resistant. Production takes place in compliance with the strictest quality criteria in ISOCELL GmbH & Co KG's own plants in Austria, Belgium, France and Sweden. Cellulose is proven insulation with many advantages over traditional methods,  with excellent performance and some of the best green credentials. As a result, Isocell cellulose is a serious contender for those who want a proven form of insulation with excellent insulation properties, fire and sound deadening properties. 


Isocell cellulose has a moisture-regulating effect. It is not only very water vapour permeable, but it can also transport moisture in the fibre. It accomplishes this without losing its insulation qualities.

Moisture transport in the construction component works by diffusion, i.e. from warm to cold. Condensation occurs when the air temperature reaches the dew point. Cellulose has a capillary conductivity, which means it absorbs any moisture that forms and thus acts against the direction of diffusion. As a result, cellulose becomes a valuable moisture buffer, especially if drying out of the construction component is only possible on the room-side - such as, for example, in the case of unventilated flat roofs, interior insulation or renovation. Isocell cellulose insulation does not accumulate mould itself and also protects adjacent parts. Source: Dl. (FH) Michael Gomm, "Mould growth on wood and wood-work materials", diploma thesis at the University of Applied Sciences of Carinthia 2009



A series of fire protection tests confirm the positive properties in the case of Isocell cellulose burning. Comparative tests show: "Non-combustible" does not actually mean "better in case of fire"! The classified superstructures of REI30 to REI 90 give security in planning. With the EN classification B-s2,d0, Isocell cellulose achieves the best possible assessment for combustible construction materials. It has been shown in an investigation by IBS Linz * that, with a 30-cm thick cellulose layer, the underlying construction component remains protected from heat for 90 minutes.

* Source: IBS file reference 11092607a 2012



Cellulose is blown in, not packed. No material drag, no waste. One and the same product for floor, wall and ceiling and for any insulation thickness. This not only saves time and money but also ensures a better quality result when insulating. The installation specialist comes with his truck to the construction site and brings everything he needs: blowing machine and cellulose fibres. The builder, carpenter or drywall constructor has already prepared everything for him. The blowing machine remains on the truck and is filled therewith cellulose. The specialist brings the blowing hose to the desired position, and work starts. The machine is operated in the truck via radio control. The cellulose fibres are matted in the construction to form a jointless insulation mat. Whether it is floor, ceiling or wall - it is always one and the same product.



ISOCELL cellulose is characterised by a particularly low heat conductivity

  • AT/EU: 0.038W/mK

  • DE: 0.039 W/mK

  • CH: 0.038 W/mK

Each insulation is only as good as its weakest point. Therefore, the Isocell cellulose also fills the narrowest gaps and crevices. This results in a jointless, thermal bridge-free insulation mat. Compact, with high bulk density and without joints, means no air currents in the insulation. As a result, on comparative measurements under real conditions, cellulose insulation performs much better. Highly trained companies specialising in Isocell ensure the high quality of workmanship.



The rooms stay cool in the summer, including the under-roof areas. ISOCELL cellulose insulation provides maximum performance in heat protection, as in other aspects. And that with enormous endurance, so far without material fatigue.

Much more energy is consumed for the cooling of buildings than for their heating. The phase-shifting indicates the time required for a temperature wave to reach the room side outside of a construction component. The larger the phase shift, the longer the heating of the building interior is prevented.

Isocell cellulose has existed for over 25 years. So far, there is no evidence that the cellulose insulation is altered by ageing.

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Sound becomes noise when it disturbs. Isocell cellulose keeps the noise outside (or inside).

Isocell cellulose achieves up to 7 dB for dividing walls and up to 5 dB better sound insulation values for dividing ceilings than found with conventional fibre mats.

Due alone to the fact that cavities are filled without gaps, a better sound insulation level than in the case of mat-form insulation is to be assumed. Incidentally, this was confirmed by TGM Vienna with a comparative test. (Test No. VA AB 11961)

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