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Answer: the cob is used to fill the wooden frames.
The cob is a mixture of straw and earth or clay and water. This totally ecological and inexpensive material makes it possible to produce a thermal and sound insulating coating. Unfortunately, it cannot guarantee total insulation, the cob therefore comes as a complement to obtain efficient and optimal insulation of a habitat. A daub containing a large amount of straw allows good sound insulation by reducing sound waves. The cob is mainly used to fill wooden frames. It increases the life of the wood by protecting it from moisture. Depending on the expected result, the cob can be prepared in two ways: by increasing the amount of soil for thermal insulation or by favoring straw for sound insulation. video id = "0" / Our practical DIY videos