Properties and characteristics of the main natural and ecological insulation.
This page is part of the file on natural insulation.
5) The Linen
Flax is a by-product of agriculture, it is one of the main textile plants cultivated for thousands of years.
Not very demanding in pesticides and fertilizers, it is today mainly produced in the north of France and in particular in Normandy for the textile industry, the short fibers not used by the textile industry are recovered for the production of felts. 'insulation.
Carded and needled, thermolated with polyestheses (maximum 15%), it is packaged in the form of panels and semi-rigid thermal and sound insulating rollers.
It has good hygroscopic power: flax wool can absorb 10 times more water than glass wool (without deteriorating).
Linen wool is easier to work than hemp. It lends itself to fabrications of greater thickness.
- Thermal conductivity: 0,035 0,04 to W / m ° C.
- Thermal resistance for a layer cm 10: 0,1 / 0,035 2,86 = m² ° C / W..
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