Charring
Under charring is understood in the building trade a simple method of wood preservation by superficial burning and timely stopping the combustion of the wood piece by shock-Delete with water so that a char is formed on the surface. In the interior of the wood sample are formed by pyrolytic those in similar reactions carbonization tar-like substances having fungicidal effect. The char is also water resistant and thus hinders the Vermoderung of timber.
This type of wood treatment is ancient and widespread, but its effectiveness is doubted from the point of view of modern wood protection. The Müritzeum in Waren , whose wooden facade was treated by charring, can be cited as an example of the use of this method in contemporary construction .
Applications
- Wooden gutters
- Fence posts made of round wood
- Pile dwellings ( historical )
- Early half-timbered buildings (historical)
literature
- Markus Jakob: Unconventional methods of surface treatment of wood . Diploma thesis No. F / 4 / D / 367/04/0. University of Architecture, Building and Wood HSB, CH 2504 Biel-Bienne, Department of Wood. Illnau 2004.