THERMALLY MODIFIED WOOD
Thermally modified wood reduces the density of wood and changes its structure, decreasing the amount of moisture absorbed and released by the wood. This makes it more stable in fast-changing weather conditions. Thermo modification also improves the properties of wood: It becomes more resistant to mould and mildew damage. Heat-treated wood is resin-free and more fire resistant than ordinary wood. In addition, the thermal and acoustic insulation properties of the wood are improved.
In addition to the practical value, thermally modified wood produces a great visual effect: in the course of the heating, the wood takes on a nice brownish colour. The intensity of the colour depends on the duration and temperature of the process, and it yields an additional option of selecting lighter or darker materials.
The surface of thermally modified wood must be impregnated with substances that protect the wood, especially against UV light, otherwise the wood’s colour will become greyish with sun exposure. Thermally modified wood is required to be rot and fungal resistant, and in most cases it is.
