Sheep’s wool is one of the most hygroscopic (water attracting) natural fibers, although its surface has hydrophobic (water-repellent) properties. Sheep’s wool can absorb uot o 33% of its own weight in moisture, bind it inside the fibers and rerelease it whenever needed. The insulating ability of sheep’s wool remains even in moist condition – thanks to high air lock in the wool ifbres.
Through this characteristic sheep’s wool does not mold and has a balancing effect on room humidity and room temperature. Sheep’s wool is a natural moisture storage and balances the humidity in living areas optimally, especially in winter.
In addition, because of these features a water vapour permeable insulating material can be manufactured, which is important for a healthy indoor climate.