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Thermowood alder patio covering

Thermowood alder patio covering


Thermowood is a thermal modified wood. This method was invented and made by the Finnish. With this simple technology, they extended the life span of the wood that contacts with soil. Thus, bugs and other insects did not go inside the wood since they could not find hemicellulose there.

The result is that wood allows less water entering the timber at the same humidity; therefore, the dimensional changes are minimized while the timber's is weathering resistance increases . This process is completely chemical free and environmentally friendly. The process is carried out on those timbers that have the best properties, such as the Finnish pine and spruce, beech, poplar, birch, alder and ash trees.

Benefits of Thermowood alder patio covering:

  • it does not warp
  • it is not growing when it gets moisture
  • its tare weight is less 40% than the "bankirai" one
  • easy to work with, customized and easy to be screwed
  • generally spotted with knots but gives a beautiful texture comparing to other homogenous tropical species
  • in large surfaces can easily bear the extreme weather conditions
  • it can be used for various purposes with extra choices available

The most common uses of Thermowood alder sauna patio covering material are the following:

  • face coverings and blinds for buildings
  • terrace and balcony coverings
  • to edge pools and lakes
  • docks, piers coverings
  • building saunas in general, outdoor saunas and wellness spots and rooms
  • building garden pathways and pergolas


Due to its natural texture and atmosphere and durability over time, the ash tree panelling is a perfect choice for exterior terrace and outdoor sauna cladding solutions.

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