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  • Wood as a raw material
    • Forest resources in general
    • Wood species and their characteristics
    • Raw material procurement
    • Quality of sawn log
    • Sawmills’ by-products as a raw material
    • Test your skills
  • Log procurement
    • Log procurement in general
    • Cross cutting
    • Raw material for pulp mills
    • Raw material logistic from the forest to factories
    • Test your skills
  • Sawn timber manufacturing
    • Mill’s production planning
    • Log sorting and measuring
    • Debarking
    • The sawing process
    • Blade technology
    • Dimension sorting
    • Stick-stacking and drying
    • Heating plants
    • Timber grading after kilning
    • Packaging, storage and marking of sawn timber
    • Sawmill process automation
    • Sawline measurements
    • Quality grading systems at the sawmill
  • Quality grading and strength grading
    • Difference between quality and strength grading
    • Visual grading of sawn timber
    • Sawn timber grades
    • Definitions and measuring methods to assess the sawn timber grade
    • Photographic examples of sawn timber features and qualities
    • Strength grading for structural timber
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  • Quality control and certification
    • Differences between internal and external quality control
    • What does certification mean?
    • Internal quality control at the sawmill
    • Test screening of chips, defining the volume and grade
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  • Maintenance
    • Organizing maintenance
    • Electrical and mechanical maintenance
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  • Occupational safety at the sawmill
    • Safety in the sawmill industry
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  • Marketing and sales
    • Marketing and sales concepts
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    • End uses for sawn goods
    • Differences between the customers in Finland
    • Differences between other markets
    • How to plan sales and production?
    • Sawn timber logistics
    • Main parameters for business
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  • Using information systems
    • How to exploit information systems in sawmill industry?
    • Data usage in wood procurement, production and sales
    • Process control systems as a part of information systems
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  • Further processed timber
    • Further processed goods – production and sales
    • Planed goods
    • FInger jointing
    • Glulam beams, I Beams and other applications
    • CLT and glulam boards
    • Thermally modified timber
    • Impregnated timber
    • Test your skills
  • The role of sawmilling in the shaping of modern Finland
    • Sawmill industry in Finland in the 17th and 18th centuries
    • Sawmill industry at 18th century
    • Impacts to the development of Finnish society
  • Sawmill industry today
    • Structure of sawmilling
    • Sawn timber – ecological material
    • Forest ownership
    • The utilization of wood
    • The sawmilling industry as an energy producer
    • Sawmills in the national economy
    • Exports of sawn timber and the domestic markets
    • Turnover and costs
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  • Future challenges
    • Future of forest industries
    • The sawmilling industry’s latest development
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  • Future vision
    • Future and structural changes of forest industries
    • Product development
    • Market outlook for sawn timber
    • Positive vision
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You are here: Home / Further processed timber / Thermally modified timber
Edellinen - CLT and glulam boards
Seuraava - Impregnated timber

Thermally modified timber

Wooden exterior slats are one the uses for thermally modified timber.

ThermoWood® is manufactured using a method developed in Finland. The wood is heated by slowly raising the temperature to around 200 degrees Celsius while the material is simultaneously protected with steam.

Besides providing protection, the steam also affects the chemical changes taking place in the wood. The manufacturing process respects the natural properties of wood using only heat and steam without any chemicals

Standard thermal modification classes are Thermo-S and Thermo-D.

With its exceptional properties non-toxic and ecological ThermoWood® is an optimal building material for many different areas of end use. ThermoWood® is an outstanding material for example for:

  • exterior cladding and facades
  • decking
  • solar shades
  • interior panelling and flooring
  • garden and outdoor structures
  • sauna materials
Edellinen - CLT and glulam boards
Seuraava - Impregnated timber

Further processed timber

  • Further processed goods - production and sales
  • Planed goods
  • FInger jointing
  • Glulam beams, I Beams and other applications
  • CLT and glulam boards
  • Thermally modified timber
  • Impregnated timber
  • Test your skills
Contact
The Association of Finnish Sawmillmen
Secretary
Jukka Ala-Viikari
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