Thermally Modified Pine: The wood that could
Thermal modification. It’s a term we talk a lot about at Intectural, and when applied to softwoods like pine, thermal modification can make these materials suitable for applications traditionally reserved for hardwoods such as exotics like Ipe and Teak. Thermal Modification is a process that involves subjecting wood to high temperatures north of 190°C, in a controlled environment with limited oxygen. This process alters the chemical and physical properties of the wood, resulting in improved durability, dimensional stability, and longevity; among other desirable characteristics.
5 Benefits of Thermally Modified Pine:
Reduced Moisture Content: Heating the wood at high temperatures drives off moisture, reducing the wood's equilibrium moisture content. This results in improved dimensional stability, drastically reducing the wood's tendency to warp, shrink, or swell in response to changes in humidity.
Cellular Changes: The high temperatures in a low oxygen environment cause cellular level changes in the wood, such as the breakdown of hemicellulose, lignin, and other extractives. This leads to a reduction in the wood's hygroscopicity (its ability to absorb moisture), making it more resistant to decay, fungi, and insect attacks.
Lightweight and easy to work with: The reduced moisture content makes Arbor Wood lighter in weight than traditional wood building materials such as pressure-treated wood or even exotic hardwoods. As a result, many people find Arbor Wood easier to work with.
Improved Color and Appearance: Softwoods like pine typically have a lighter color and less desirable appearance compared to hardwoods. Thermal modification can darken the wood's color, giving it a richer, more uniform appearance that resembles hardwoods.
Reduced Swelling and Shrinking: By altering the wood's structure, thermal modification reduces its tendency to swell and shrink, making it suitable for applications where tight tolerances are required.
Overall, thermal modification transforms softwoods like pine into a more durable, stable, and aesthetically pleasing material that can be used in a variety of applications traditionally reserved for hardwoods, including flooring, decking, siding, furniture, and so much more.