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Cellulose fiber

Cellulose fiber insulation is produced by processing newsprint using special methods in order to obtain ecologically clean cellulose fiber which are mixed with antipyrine and antiseptics. We offer cellulose heat insulation which does not contain borax and boric acid!

Cellulose fiber resembles a thin pipe. When moisture gets into fiber, cellulose fiber absorbs it, spaces between the fibers remain dry and thermal conductivity does not worsen until moisture does not exceed 23.5%. In case of water emergency cellulose fiber can absorb 5-6 times more water than its own volume. Because of this characteristic water does not get to and damage other parts of the construction. After drying out cellulose fiber does not loose its characteristics and this is possible only because of capillary structure in cellulose fibers. Thus there is no need for steam and hydro isolation layer when using cellulose fiber as insulation material.

In comparison, moisture in the inorganic insulation material (mineral wool) is not absorbed but condensates into water that fills the gaps between fibers. When using mineral wool water can freeze or flow to other parts of construction and thus damage them. Thermal conductivity in the material worsens fast – decreases by 8% for every  1% increase in moisture. Exactly for this reason steam and hydro isolation is necessary when using inorganic insulation materials.

Cellulose fiber characteristics:

  • ecologically clean and natural material
  • provides breath ability and moisture regulation
  • high heat insulation capabilities
  • can be deposited in horizontal, sloping and even vertical surfaces
  • economical – no residue is formed during deposition and the insulation significantly reduces heat loss thus allowing to cut down on heating bills
  • health friendly and anti-allergic
  • effective acoustic insulation
  • does not accommodate pests and rodents
  • fireproof and flame retardant
Thermal conductivity W/mK 0,039-0,043 (depending on deposition method)
Temperature constraints From -50 to 80
Moisture absorption % 8,8
Packing Kg Polyethylene bags (each bag contains 13,6 kg)
Density of deposited material

horizontal surfaces

sloping surfaces

vertical surfaces

Kg/m3 Optimal material density depends on construction type, material deposition method and desired insulation layer thickness.




Air flow rate m3/ms Pa 80…120 x 10″ density 30,6…40,0 kg/m3
Uzliesmojuma pakāpe C-S1-d0
U-value 0,2 W/m2K cm ~20
Relative heat capacity Cd J/KgK 1907
Certification ISO 9001:2008 (quality management certificate);

ISO 14001 (environmental management certificate);

CE (European Conformance mark);

ETA (European Technical Approval);

Ecologic qualities of material are confirmed by EKO tags.