Wood is one of the materials used in decoration, interior design and architecture, its wide advantages and benefits at both decorative and functional. However, never forget that it is a living material, which undergoes constant changes. For example, to absorb moisture swells and shrinks to eject.
Thus, by placing wood indoors or outdoors we must make the corresponding treatment conditions to maintain it over time. Thus, exposure to rain and moisture can cause a significant deterioration in the wood.
With the above treatments were able to improve the conservation status of the material, preventing turn the appearance of beetles or the action of fungi, other agents capable of damaging the wood deeply. The treatments allow water vapor to escape, avoiding drawbacks of wood.
The key components of wood are cellulose, hemicellulose and lignin. While the water absorbs a lot of cellulose, lignin largely ejects. However, even in very dry wood can reach a relative humidity of 5%, beyond having a film of varnish applied.
Thus the main objective of the different protection treatments, such as oil, wood stains, paint or varnish is to cover the wood evenly and allow passage of water vapor into the interior and exterior of the material. This is very important for one simple reason: when the water vapor from the interior can not go outside, the wood is kept constantly moist and begins to rot.