Arbor Wood Co. produces thermally modified wood for a variety of outdoor and indoor applications, including siding, decking, and architectural millwork. Their process starts by using domestically and responsibly sourced wood that is thermally modified using only heat and steam. The result is a high-quality, performance-driven material, that sustains the natural beauty and design element of wood without the use of harsh chemicals.

Thermally Modified Wood

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The Performance-Driven Choice

The thermal modification process affects wood’s relationship with water by breaking down the hydroxyl groups in the wood and eliminating the bound water, making Arbor Wood less prone to mold, rot, and fungal decay. The wood is also less likely to absorb new moisture and has a reduced equilibrium moisture content, reducing the chance of swelling and shrinking by up to 60%. The lower moisture content reduces the overall weight of the wood and helps support the general workability of Arbor Wood.

Chemical Free.

Thermal modification is a natural, chemical-free process using only heat and steam to remove moisture from wood cells. As a result of lower moisture content, it is lighter weight for easier handling/installation.

Increased Stability.

Thermally modified wood is less susceptible to cupping and warping with changes in relative humidity.

Decay Resistant.

The risk of fungal attack is greatly reduced because thermally modified wood no longer contains sufficient nutrients.

Enhanced Appearance.

Thermally modified wood will have darker through-color tones. Color will vary with cook temperatures and species. Like standard wood, thermally modified wood, if left untreated, will turn a weathered gray color over time.