revêtements maibec sidings
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100% wood. 100% ecological, 100% natural.

Download our THOR brochure pdf

maibec, Canada’s leading manufacturer of genuine wood siding, introduces THOR Torrefied WoodTM siding, a stable and durable product with a rich, warm, natural look.

Torrefaction is a 100% natural prolonged high heat treatment process that leaves wood amazingly stable and durable. Wood torrefaction uses no harmful chemical. Our water-based stains have low harmful volatile organic compound (voc) emissions.

What is torrefaction?


1. Preheating and drying
First, the wood is gradually heated to approximately 130°C for about 20 hours. This process equalizes the material and lowers the moisture level to almost 0%.


2. Intensive heat treatment
The wood is then heated to about 200°C to thermally modify its molecular structure. This procedure yields three effects: it gives wood a rich natural amber colour, the wood is much less subject to fluctuations in moisture levels, giving it unmatched stability and durability and the wood has much greater resistance to decay and insects.

3. Cooling and conditioning
The temperature is then gradually lowered. During this phase, the controlled addition of water vapor brings the moisture level of the wood back to 4% to 7%. This restores natural flexibility, making it easier to work with.



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