For the long term durability of historical wooden buildings, constructors and users who deal with this subject have to know wood properties exactly. Wooden houses offer a number of advantages that are far greater than traditional houses.

As we know, many, materials change in size and volume as the temperature changes. They expand with increasing of the temperature. This means linear and volumetric expansion.

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The expansion causes decrease in the strength of materials. Steel, which is inorganic and non-combustible and therefore has an advantage against fire, but when used in buildings, it expands and collapses as a result of increase in heat.

Wood does not practically expand against heat. On the contrary, by the effect of heat, it dries out and gains strength. The only time wood expands a little is when the humidity level is below 0%, and this is only scientifically significant. In practice, the humidity level of wood does not drop under 5% even in the driest climate.

It is easy to repair and maintain wood. While old woods can be renewed by special touches other materials are highly difficult and costly to maintain and to repair. Therefore they are usually disposed of.

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