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ISOCELL - Cellulose Fibre

ISOCELL - Cellulose Fibre
Cellulose blow-in insulation – blown insulation made from newspapers ISOCELL cellulose blow-in insulation is a thermal insulation made from cellulose fibres which is produced from newspaper in an optimal recycling process. Therefore, the raw material for ISOCELL is wood, the excellent properties of which have been known to us for centuries. Production of ISOCELL takes place in Austria, in one of the most modern plants in Europe. The newspaper is delivered pre-sorted, is roughly torn, mixed with mineral salts and ground in a mill. The flock is rot-proof and resistant to vermin and mould. Production is subject to strict quality standards and undergoes internal and external quality control to maintain European technical approval. The long-fibre flock impresses with its extremely low coefficient of thermal conductivity and its ability to settle without sinking, even when the layer of insulation is very thick. ISOCELL is non-toxic, contains no harmful substances or additives, is pleasantly soft and warm to the touch. It does not irritate or damage the skin and for this reason it rates as a friendly insulation. Licensed ISOCELL specialist companies blow the cellulose fibre into the cavities with the aid of special blowing machines. The cellulose fibres mat inside the construction to form a perfectly fitting insulation mat that is jointless and settles well.

Field of application

  • The insulating material cellulose is used in new buildings and in renovations as a loose blown-in insulation in the roof, wall, ceiling and floor.


  • top thermal insulation values
  • outstanding protection against heat
  • optimal sound insulation
  • high fire protection
  • regulates humidity
  • no wastage, no joints
  • fast and clean
  • effective environmental and climate protection

Product data

ISOCELL is natural thermal insulation made from cellulose fibers, which is created by recycling clean, unmixed newspaper. Coarsely fibered, mixed with mineral salts and ground in a mill, Isocell cellulose makes it rot-proof and fire-resistant. Production takes place in compliance with the strictest quality criteria in our own plants in Austria, Belgium, France, Germany and Sweden. ISOCELL cellulose is vapour-permeable and moisture-regulating. Its good thermal insulating properties keep the cold out in winter and the heat out in summer. Overall, the natural properties of the cellulose fibres in conjunction with the ISOCELL injection system also meet the highest requirements for living space climate and the saving of energy.
Technical approval
ETA - 06 / 0076
Rated value of thermal conductivity
Austria / EU: 0,038 W / m*K, Germany: 0,039 W / m*K
Thermal conductivity
0,037 W / m*K
Blow- in density
28-65 kg/m³
Water vapour diffusion resistance
μ = 3
Specific thermal capacity
2,11 kJ / kg K
Airflow resistance
r = 8,1 kPa. s / m² at 30 kg / m³; r = 46,3 kPa. s / m² at 55 kg / m³
Airflow resistance
EN 29053, method A
Reaction to fire
Austria / EU: ≥ 100 mm / B-s2, d0, Germany: B 2 - DIN 4102
Reaction to fire
EN 13501-1
Disposal clue
Austria: ASN 18407, ASN 91101, CEE: 17 06 04, 17 09 04, 20 03 01
The material can be restored to the producer, assumed it is not contaminated. Burning in a refuse incineration plant as mono-waste or together with other community refuse is permitted.