Properties
Flax fibres have a good insulation value (λ = 0.04–0.045 W/mK). The water vapour diffusion resistance coefficient μ is 1 to 2. The fibers are very tensile and elastic. Flax can absorb moisture without damage. The fibres are made of cellulose and are free of animal protein and are therefore resistant to moths and mould. In addition, the fibers are protected by flax wax. Flax fibres correspond to fire behaviour class E.
Image: The environmental consultancy
Supply forms
Flax is offered as sheets, felts, strips or as loose darning wool.
Flax
is suitable wherever there is no high static load. It is mainly used for the insulation of wooden structures. Walls and ceilings can be insulated with flax, as can loft conversions. Insulation boards for heat and sound insulation in roofs, wooden beam ceilings and timber stud walls, as well as insulation between beams, squared timber and storage timber.
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red = areas of application, grey = not possible