NASTHERMOWOOD PRODUCTION PROCESS

The ThermoWood method is licensed to members of the International ThermoWood Association.

The ThermoWood process consists of three main stages

Stage 1:

Drying

Using heat and water vapor, the kiln temperature is rapidly raised to 100°C. Then the temperature is continuously increased to 130°C, during which high-temperature drying is carried out and the moisture content of the timber is reduced to almost zero.

Stage 2:

High-Temperature Heat Treatment

After the Stage 1 drying process, the kiln temperature is raised to between 185°C and 212°C. Once the target temperature is reached, it is held constant for 2–3 hours depending on the intended end-use application.

Stage 3:

Cooling and Conditioning

In the final stage, the temperature is lowered using water-spray systems. When the temperature reaches 80–90°C, the timber is re-moisturized to bring its moisture content to a usable level of approximately 4–7%. The conditioning process is then completed.

Thermo S

• For Thermo S products, the Thermowood® process is carried out at 185–190°C. NasThermowood recommends Thermo S products for building components, wall and ceiling panels in dry conditions, furniture, door and window components, sauna products, flooring, cladding and shutters.

Thermo D

• For Thermo D products, the Thermowood® process is carried out at 205–220°C. NasThermowood recommends Thermo D products for exterior wall cladding and decking, exterior joinery, shutters, sound barriers, sauna/bathroom furniture, garden furniture and other outdoor construction requirements.

• The dimensional properties of timber are preserved in the best possible way.
• After the Thermowood process, the color of the timber is preserved as close as possible to its natural appearance.
• The Thermowood process is environmentally friendly and healthy.
• Thermowood timber is more practical and longer-lasting than untreated timber.
• Thermowood is resistant to demanding weather conditions and suitable for exterior façade applications.
• Thermowood provides greater sound and thermal insulation than untreated timber.

NASTHERMOWOOD

To manufacture Thermowood®, a company must be an official producer of the International ThermoWood Association and must also possess the strong infrastructure and technology required for production. As an official producer of the Association, Naswood carries out its thermally modified timber production under the NasThermowood brand. Thermowood® production takes place at the group’s Muğla factory, which is built on more than 15,000 m² of land and has approximately 10,000 m² of enclosed area. NasThermowood is also monitored through an independent quality-control system and supplies Thermowood® products in accordance with established procedures and original technical requirements. With its strong investments and technology, it has become one of the leading companies in the sector. Formulation and consistent quality are of great importance throughout the Thermowood® process. With this awareness, Naswood manages its human-resources and quality-management policies in line with international standards and organizes regular training sessions and workshops.