What is the ThermoWood process?
What is the ThermoWood process?
The ThermoWood® production process uses heat, steam and water. Wood is heated for a long period at temperatures up to 208°C. This heat treatment also produces specific chemical changes of the wood, giving rise to a long-lasting and stable product.
Does ThermoWood change colour?
The colour change of Thermowood® is impacted by the treatment temperature and duration. The colour change is primarily the result of the degradation of lignin. Heat treatment colours the wood throughout. The final colour shade is a result of the combined effect of the treatment degree and surface treatment agent.
What is ThermoWood decking?
Silva ThermoWood® is an attractive, sustainable solid wood decking material produced using a chemical-free natural process involving heat and steam. Finnish-grown European Redwood (Scandinavian Pine) is heat-treated to temperatures in excess of 200 degrees Centigrade.
What colour is ThermoWood?
Thermowood is dark brown in colour throughout, giving it an attractive and consistent look. If left untreated the colour will turn a silver-grey. Or, treatment can be easily applied for colour protection.
Is ThermoWood waterproof?
Thermo-processed wood is darker than natural wood, more weatherproof and more resistant to rot. Its insulation qualities are better, it suffers from less moisture deformation and is more stable.
Is ThermoWood fire resistant?
ThermoWood, according to a brochure by its manufacturer, is wood that has been heated to make it “more stable”. The brochure says that its reaction to fire is rated as Class D.
How do you protect ThermoWood?
It is recommended to protect the thermowood used for sauna, bath or shower walls and benches, with an oil-based coating or sauna varnish. It is protection wood of against water and dirt, as well as against possible fracture of the edges. Any excess used must be cleaned.
What is heat treated ThermoWood?
Thermowood is created by heat treating Scandinavian softwood to temperatures ranging from 180 – 230° in special chamber kilns for up to 96 hours. Steam is used as a protective gas and helps to prevent the wood from splitting and becoming damaged during treatment.
How do you protect Thermowood?
How do you treat Thermowood?
Smooth the surface using fine sandpaper, if needed. Apply 1–2 layers of pigmented terrace oil, such as Tikkurila Valtti Plus -wood oil, tinted with Lunawood Brown, TVT 5051 or TVT 5071. Follow the instructions for the surface treatment agent. If left untreated, Thermowood will turn grey over time.
Can you burn ThermoWood?
ThermoWood is 30% more fire resistant than regular wood. Combined with the charring/burnt process the boards become highly fire resistant.
Is timber cladding a fire risk?
Fire resistant timber cladding is safe, and does not pose a fire risk to low rise buildings (classified up to 3-storeys). Non-combustible cladding options exist and they maintain a stylish timber-like appearance.
What was the purpose of Thermowood thermal treatment?
ThermoWood® is the result of an innovative process in which heat treatment plays a central role. Thermal modifications ensure that the durability of the wood increases and its quality improves. The first thermally treated wood was produced in the 1930s by the German scientists Stamm and Hansen, and in the 1940s by the American scientist White.
Where did the term Thermowood wood come from?
At the beginning of 1990s the term ThermoWood ® was coined for the first time when the VTT (Technical Research Center in Finland) further expanded the research to heat treatment, and thus the ´ThermoWood ® method´ was developed. The ThermoWood ® production process uses heat, steam and water.
How is Thermowood produced in an environmentally friendly way?
Environemntally Friendly – The softwood used to produce Thermowood originates from well-managed, PEFC-certified forests, and as no chemicals or foreign substances are involved during its production, Thermowood is an environmentally friendly material produced by using only natural methods.
Can you recycle pressure impregnated wood into Thermowood?
Can be Recycled – Unlike pressure impregnated wood, Thermowood can be discarded or recycled as untreated wood when it is no longer required. The thermal modification of wood improves the wood’s properties, thereby expanding the range of applications in which the wood can be used.