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Thermally Modified Wood

Engineered for endurance and built to outlast!

Wholesale prices starting at
$ 1.47 LF

Our Process

Thermally modified wood goes through a process in which the chemical properties of wood are modified with heat and steam removing moisture from the wood’s cell, increasing its durability and stability to obtain a high quality product for indoors or outdoors applications.

1. Drying

Using heat, the oven temperature is raised to 100⁰C quickly. Then, the temperature is constantly raised to 130⁰C, during this time the wood is dried and the moisture is reduced to zero.

2. Heat treatment

The temperature in the wood is increased to 180⁰C (Thermo S) and 212⁰C (Thermo D) with water vapor. When the target temperature is reached, this heating process is applied for 2-3 hours.

3. Cooling and humidification

In this last part, the temperature of the wood is lowered to 80⁰C – 90⁰C by the use of the water spray and it is continued until the humidity of the wood reaches
4–6%.

Advantages of Thermally modified Wood

Discover the Power of Thermally modified Wood

100% Natural​

The wood is completely free of resin and other chemicals. It is manufactured without the use of any chemical substances.

Ecological

It’s harmless to human beings and living species. Environmentally friendly, healthy, recyclable, strong, durable and long lasting.

Durable

Maintains durability in all weather conditions. It is longer lasting than Kiln Dried wood. Its low humidity prevents decay and fungal growth.

Stable

It is 90% less likely to bend and twist compared to wood which has not been thermally modified. Its durability is improved by minimizing any kind of movement.

Safe

It is 30% more fire resistant than normal wood.

Isolated

It provides 25% more sound and heat isolation than non-thermally modified wood.

Safe Against Infections

Insect formation is completely prevented as a result of the removed moisture content through high heat treatment

Homogeneous

As a result of the thermal process, wood’s color becomes homogeneous. Its retention of polish and paint is increased compared to regular wood.

Transform your projects with the remarkable properties of thermally modified wood.

Why Us?

Our goal is to provide beautiful, sustainable and long-lasting products that will bring life into any interior or exterior space. We craft our wood with a special thermal process that gives them superior durability while also preserving their natural beauty and properties.

This eco-friendly and sustainable preservation method for woods allows them to be more durable and resistant. our process, which refrains from using any chemicals, offers premium-quality, weatherproof products that meet the highest standards.

Species

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Project made with Ash wood for the wall of a building.
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Project made with Ash wood for the deck of a building complex.
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Project made with Ayous wood for the siding of a private house.
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Project made with Ayous wood for the ceiling of a hotel.
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ENHANCING WOOD’S PROPERTIES FOR EXCEPTIONAL PERFORMANCE

PROFILES AVAILABLE

Thermally modified wood is available in a wide range of profiles. We have an in-house milling service, and we can create all the profiles that you need!

GROOVE 1 SIDE

GROOVE 2 SIDES

SHIPLAP

T & G-NICKEL

T & G-SQUARE

T & G-V-JOINT

frequently asked questions

This procedure called “thermal modification” decreases water absorption in wood, thus increasing its resistance to decay while reducing swelling and shrinking. Another factor that contributes to wood’s exceptional durability is the crystallization of cellulose. The modification of hemicellulose enhances its durability, where hemicellulose is broken down into furfural and carboxylic acid. Additionally, the application of heat causes lignin to caramelize, resulting in a darker color.

A method in which the chemical properties of wood are modified with heat and steam. The minimum modification temperature is 160°C. The consequent changes in the wood structure are permanent.

The modification phases are high-temperature drying, thermal modification and cooling, and moisture conditioning. The process results in permanent physical and chemical changes in the wood. The new properties remain unchanged, even when the timber is processed with methods such as sawing or planing. 

  • Drying: Using heat, the oven temperature is raised to 100⁰C quickly. Then, the temperature is constantly raised to 130⁰C, during this time the wood is dried and the moisture is reduced to zero.
  • Heat treatment: The temperature in the wood is increased to 180⁰C (Thermo S) and 212⁰C (Thermo D) with water vapor. When the target temperature is reached, this heating process is applied for 2-3 hours.
  • Cooling and humidification: In this last part, the temperature of the wood is lowered to 80⁰C – 90⁰C by the use of the water spray and it is continued until the humidity of the wood reaches 4–6%.

Heat treatment increases the stability and durability of wood. Wood is composed of 50% cellulose, 23% hemicellulose, 20% lignin, and 7% other organic compounds, called extractives. Heat treatment eliminates resin, all other extractives and bonding water called OH (Hydroxil) groups from the wood. This process reduces water absorption of wood, consequently increasing decay resistance while decreasing swelling and shrinking. Another factor that contributes to the high durability of wood is the crystallization of cellulose. The change in hemicellulose increases the durability. Hemicellulose is separated into furfural and carboxylic acid. Caramelization of lignin, caused by heat, results in a darker color appearance of the wood.

Thermally treated boards undergo natural aging and develop a gray patina over time, unless preventive measures are taken. Therefore, the initial consideration is whether to preserve the boards’ original color or embrace their natural aging process.

No chemicals are used in the production of Thermally treated wood. All raw materials are procured from certified sources. The production method is a result of extensive development work and it is based on the controlled modification of timber with heat, steam and water.

Thermally treated wood is lightweight and easy to install. For that reason, it is ideal for projects where extra loading on the building is a concern. 

Sustainability is at the core of every Thermally modified product.

SUSTAINABILITY

FSC-Certified​
0 %
Chemicals and Toxics​
100 %

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