Timbera Group thermowood: unique properties and benefits for home and facade

Timbera Group wood is an eco-friendly, attractive material with enhanced properties that works equally well for both indoor and outdoor use – in residential projects as well as public spaces – all thanks to its outstanding durability. But that’s far from its only advantage, so let’s take a closer look at the question: “Why thermowood?”

Weather resistance – during thermal treatment, the density of the wood increases while hygroscopicity is drastically reduced, meaning the wood stops absorbing moisture. Even after being fully submerged in water for a long time, water absorption is no more than 4–6% of its total mass.

Unlike regular wood, thermally modified wood isn’t affected by rain, snow, or sudden temperature swings – it handles them with ease.

Key benefits of Thermowood

• Dimensional stability: always keeps its shape and size without shrinking, swelling, cracking, or warping. Tangential and radial stability after thermal treatment improve by 10–15 times.
• Strength and wear resistance: even relatively soft wood species become hard and resistant to mechanical damage after treatment.
• Scratch and dent resistance: the surface doesn’t easily mark – even intentional damage is hard to do, let alone accidental.
• Resistance to microorganisms and insects: thermal treatment breaks down the polysaccharides in wood (the main food source for insects, fungi, and bacteria), which are then washed out with steam.
• Decorative appeal: the grain becomes more pronounced, and the wood takes on a rich, noble color. The natural dark tone goes through the full depth of the material. Depending on the treatment temperature, the palette ranges from natural wood tones to deep brown. Even common species can look like expensive exotic woods after modification.
• Longevity: service life increases many times over (15–25 times longer) for both interior and exterior applications, thanks to moisture resistance, protection against mold and fungi, and resistance to rot and pests.
• Fire safety: tests show thermowood releases significantly less carbon monoxide when burning – important, since during fires most casualties happen from smoke inhalation, not flames.
• 100% eco-friendly: thermal modification is carried out at high temperatures in a steam or oxygen-free environment, with no chemicals used. This keeps the wood completely natural and safe for people and the environment throughout its entire life cycle.
• No resin in softwoods: resin is fully removed during treatment. This makes wood easier to work with and prevents resin leaks even under high heat.
• Perfect surface quality: dense, smooth, warm to the touch, and very pleasant in feel.
• High thermal and sound insulation: highly valuable for construction. Thermal conductivity decreases after treatment and depends on surrounding humidity. Thermowood retains warmth in winter and coolness in summer 30–50% better, and in saunas it doesn’t overheat to the touch.
• Lighter weight: the volume weight of thermowood is noticeably reduced – a house kit made from it is about 40% lighter than one built from regular wood. This lowers transport costs and makes delivery to hard-to-reach areas much easier.