Thermally Modified Wood Siding

In recent years, thermally modified wood siding has gained significant traction among homeowners and architects alike. This innovative material is not only aesthetically pleasing but also offers a myriad of benefits that make it an increasingly popular choice for residential and commercial properties.

In this blog post, we’ll cover what thermally modified wood siding is, why it’s becoming more popular, and the advantages of installing it on your property.

What is Thermally Modified Wood Siding?

Thermally modified wood siding is a product of a process that uses heat and steam to alter the molecular structure of the wood. This treatment enhances the wood’s durability, stability, and resistance to rot and decay, without the use of chemicals.

The process typically involves heating the wood to temperatures between 160°C to 215°C (320°F to 419°F) in a controlled environment, which results in a product that is not only beautiful but also incredibly resilient.

  1. Environmental Sustainability: As awareness of environmental issues grows, more people are seeking Eco-friendly building materials. Thermally modified wood is a natural product that doesn’t rely on chemical treatments, making it a more sustainable choice compared to traditional siding options.
  2. Durability and Longevity: The thermal modification process strengthens the wood, making it more resistant to decay, rot, and insect infestations. This means that thermally modified wood siding can last much longer than untreated wood, reducing the need for frequent replacements and maintenance.
  3. Enhanced Stability: One of the most significant advantages of thermally modified wood is its dimensional stability. The process reduces the wood’s tendency to expand and contract with changes in humidity, minimizing warping, cracking, and other issues associated with traditional softwood siding.
  4. Aesthetic Appeal: Thermally modified wood has a rich, deep color that is achieved through the heating process. This natural beauty is often sought after for its ability to enhance the architectural design of a building.
  5. Low Maintenance: Unlike other siding materials that require regular painting or staining, thermally modified wood requires minimal maintenance. Its natural resistance to weathering means that it can retain its appearance for years without the need for frequent upkeep.
thermally modified wood siding
thermal modified siding

Benefits of Installing Modified Wood Siding

  • Increased Property Value: The aesthetic appeal and durability of wood that has been thermally modified can significantly increase the value of your property.
  • Energy Efficiency: The thermal modification process can improve the insulating properties of the wood, potentially leading to energy savings.
  • Health and Safety: Since no chemicals are used in the modification process, thermally modified wood is a safer and healthier choice for both indoor and outdoor applications.
  • Versatility: Thermal modified wood can be used in a variety of architectural styles, from modern to traditional, making it a versatile option for any design.

Modified Wood Siding Prices

You can buy thermally modified wood siding directly from We have partnered with Arbor Wood to be one of their leading suppliers. Our four US factories have s large inventory of Arbor Wood that will ship direct to your home. The prices range from $4 to $12 per linear foot depending on the specie and board size. Bulk pricing is available for those that are doing very large jobs.


The thermal modification process is a testament to the advancements in sustainable building materials. Its growing popularity is a reflection of its numerous benefits, including environmental sustainability, durability, low maintenance, and aesthetic appeal. As more people look for Eco-friendly and long-lasting options for their homes, thermally modified wood siding is poised to become a mainstay in the construction industry. Whether you’re building a new home or renovating an existing one, considering thermally modified wood for your siding is a decision that aligns with both environmental responsibility and practicality.

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