Thermally modified wood for baths and saunas: advantages and features
When building and finishing a bath or sauna, it is important to choose the right materials that will withstand high temperatures, humidity and temperature changes. Ordinary wood darkens, warps and loses its properties over time. However, there is a material that retains its strength and attractive appearance even in the most difficult conditions - this is thermally modified wood. In this article, we will consider the advantages of thermally modified wood for a sauna, figure out which wood is best for a bath and how to choose thermally modified wood for a bath so that it lasts for many years.
Why is thermally modified wood better than regular wood in a bath?
Heat-treated wood is a natural material that has undergone special heat treatment without the use of chemicals. Under the influence of high temperatures, the structure of the wood changes, which makes it more resistant to moisture, fungi and high temperatures. The main reasons why thermally modified wood is better than regular wood in a bath:
Moisture resistance. The material does not absorb water, which prevents swelling and cracking.
Protection against fungi and mold. Thermally modified wood does not create conditions for the growth of microorganisms.
Durability. The service life of thermally modified wood in a sauna is several times longer than that of untreated wood.
Aesthetics. The material acquires a beautiful shade that is preserved throughout its entire service life.
Hygiene. Thermally modified wood has a dense structure and does not absorb odors and dirt.
Thermally modified wood for walls and ceilings in a sauna
When choosing materials for interior decoration of a sauna, it is important to consider that the walls and ceiling are exposed to high temperatures and humidity. Thermally modified wood for walls and ceilings in a sauna is an ideal solution, as it:
Does not crack or warp when heated.
Does not emit resins or foreign odors.
Creates a comfortable and healthy atmosphere in the room.
Thermowood for a bath: pros and cons
Pros:
High resistance to moisture and temperature changes.
Durability and minimal maintenance.
Environmental friendliness – no chemical impregnations.
Aesthetic appearance.
Cons:
Higher price compared to ordinary wood.
Requires proper installation to preserve properties.
Finishing a bath with thermal wood: main options
Different types of thermal wood can be used for finishing a bath and sauna:
Thermo linden – does not emit resin, has a pleasant aroma.
Thermo alder – is resistant to moisture and retains heat well.
Thermo pine – has high strength and a beautiful color.

How to choose thermal wood for a bath?
When choosing, it is important to consider:
The thickness and type of wood – the higher the quality, the longer the material will last.
Processing – smooth or brushed surface.
Manufacturer – it is better to choose trusted suppliers.
Where to buy thermally modified wood for a sauna?
Buying thermally modified wood is a responsible step. To choose a quality material, you should pay attention to:
Availability of certificates and warranties.
Assortment – the wider the choice, the easier it is to choose the right option.
Seller's reputation.
Prices for thermally modified wood for baths
The cost depends on the type of wood, board thickness and manufacturer. On average, prices for thermally modified wood for baths start from 1800 UAH per m² and can reach 3000 UAH per m² depending on quality and processing.
Using thermally modified wood for a bath and sauna is an excellent solution for those who value durability, environmental friendliness and beauty of natural wood. Due to its high resistance to moisture and temperature, such material will last for many years without losing its appearance and performance characteristics. The main thing is to choose the right boards for the sauna, taking into account the type of wood, thickness and processing method.
20/03/2025

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