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ThermoWood®

The best of wood
hjt-holz
Since the beggining

Why choose ThermoWood® from HJT-Holz?

Enhanced Durability

Thermowood is known for its exceptional durability, which is a result of the heat treatment process it undergoes. This process changes the chemical structure of the wood, making it highly resistant to decay caused by fungi and insects. By eliminating the food sources that these organisms rely on, Thermowood significantly prolongs the wood’s lifespan. This durability makes it an excellent choice for outdoor applications, such as decking and cladding, where exposure to the elements can quickly deteriorate untreated wood.

Improved Dimensional Stability

The heat treatment process of Thermowood reduces its moisture content and limits its ability to absorb water. This results in improved dimensional stability, meaning the wood is less likely to swell, shrink, or warp when exposed to varying humidity levels. Such stability is crucial in environments with frequent temperature and moisture changes, ensuring that structures made from Thermowood retain their shape and integrity over time. This makes it a reliable material for applications like windows, doors, and outdoor furniture, where precision and longevity are essential..

Eco-Friendly and Chemical-Free:

One of the key advantages of Thermowood is that it does not require chemical treatments to enhance its properties. The wood is modified using only high temperatures and steam, which makes the process environmentally friendly. This lack of chemicals reduces the risk of harmful substances leaching into the environment, making Thermowood a safer option for both people and ecosystems. Additionally, using sustainably sourced wood for Thermowood production supports responsible forest management and conservation efforts.

Better Thermal Insulation

Thermowood offers better thermal insulation compared to untreated wood due to the changes in its cellular structure during heat treatment. The reduction in wood density means it has lower thermal conductivity, which helps in maintaining a stable internal temperature in buildings. This improved insulation can contribute to energy savings by reducing the need for heating and cooling. As a result, Thermowood is a suitable material for applications where energy efficiency is a priority, such as in cladding, roofing, and wall panels.

Attractive Appearance:

Thermowood retains the natural beauty of wood while gaining a distinctive, rich color through the heat treatment process. This color ranges from golden brown to dark chocolate, adding aesthetic value to any project. The process also enhances the visibility of the wood grain, giving it a unique and appealing look. These visual qualities make Thermowood an ideal choice for both interior and exterior design, where a natural and sophisticated appearance is desired.

Low Maintenance:

Due to its enhanced durability and resistance to moisture, Thermowood requires significantly less maintenance than untreated wood. It does not need frequent sealing, painting, or staining to protect it from the elements. This ease of maintenance makes Thermowood a practical choice for busy homeowners or commercial projects where long-term upkeep can be costly. The low maintenance requirements help preserve its appearance and performance, making it a cost-effective and hassle-free option for various applications.

Browse Our rough sawn ThermoWood® Products

ThermoPine (Pinus Sylvestris)

AB-Grade

ThermoSpruce (Picea Abies)

AB-Grade

ThermoRadiata (Pinus Radiata)

A-Grade

ThermoAsh (Fraxinus Excelsior)

A-Grade

ThermoAyous (Triplochiton scleroxylon)

A-Grade

ThermoFrake (Terminalia superba)

A-Grade
ThermoWood®

Example applications of heat treated wood

The process of heat treating wood involves subjecting it to controlled elevated temperatures, inducing a range of physical and chemical changes. Notably, this treatment enhances the wood's resistance to decay, fungi, and insects, making it more durable and suitable for outdoor and indoor use.

ThermoWood® for indoors

Sauna interios

Thermowood is widely used in sauna interiors due to its resistance to heat and moisture. It adds a natural and aesthetically pleasing look to sauna spaces.

Wall and ceiling panels

Thermowood panels can be used for wall and ceiling coverings in interior spaces, providing a warm and cozy ambiance.

Thermowood 11
Floorboards

Thermowood can be used for flooring, offering both durability and an attractive appearance.

Furniture

The enhanced stability and durability of thermowood make it suitable for crafting indoor furniture, such as tables, chairs, and cabinets.

ThermoWood® for outdoors

Exterior cladding

Thermowood is often used for exterior cladding on buildings. Its resistance to decay and dimensional stability make it a durable choice for protecting the exterior of structures.

Decking

Thermowood can be used for constructing terraces, providing a natural and long-lasting outdoor living space.

Thermowood 2
Fences and balcony

Thermowood fences are popular for balconies because of their durability and resistance to weather conditions, providing an attractive and functional boundary for outdoor spaces.

Carpentry Industry

Thermowood is used in various carpentry products, including windows, doors, and hot tubs, due to its enhanced durability and resistance to the elements.

HJT-Holz and ThermoWood®

Browse our certifications

Our AB-graded coniferious products is sourced from ecologically managed Finnish forests and meets the highest environmental and quality standards. Explore our certifications, including FSC and PEFC, to see our commitment to sustainability and product excellence.

Certifications
Offices

Head Office

Manufacturing is entirely made in Mänttä-Vilppula.

Lahnajoentie 196
35700 Mänttä-Vilppula
Finland

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Company

HJT-Holz specializes in producing and processing heat-treated wood which is exported from our yard globally.

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HJT-Holz Oy
VAT ID: FI0967855-5
Proxy information:
E-address: 003709678555
Broker ID: 003726044706
Broker: Netbox Finland Oy
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