Thermally Modified Wood Cladding

Ash Siding Pine Siding Finish Options Installation Technical Resources

Introducing Arbor Wood™ Thermally Modified Wood Siding

Unmatched Durability & Natural Beauty

Arbor Wood is a thermally modified eco-friendly alternate cladding option to composite and synthetic siding, as well as chemically-treated siding materials. Thermally modified wood is less prone to water absorption, expansion, contraction, rot and decay. Native wood species that are not typically suitable for outdoor usage are able to perform admirably - with a long service life.

Arbor Wood Siding

Locally and sustainably harvested from American forests
White Ash and Southern Yellow Pine are both sourced from responsibly managed forests in the United States, offering a very low carbon footprint.
Enhanced durability
The Thermowood thermal modification changes the wood at the cellular level, and increases its resistance to rot, decay, and insects—similar to tropical hardwoods.
Improved dimensional stability
The process makes the wood quite resistant to water. This reduces the potential for warping, cupping, and makes it far more resistant to expansion and contraction.
Non-toxic and chemical-free
No preservatives are used in the thermal modification process, the treatment relies solely on heat and steam and a proven production process.
Richer color and appealing aesthetics
The process darkens the wood somewhat, providing a warm, more uniform color and appearance.
Low maintenance
Arbor Wood thermally modified siding can be left to naturally silver-gray or maintained with exterior oil for color retention. In either case, protecting the wood with an oil finish for the first season is considered a best practice.

Arbor Wood Ash Siding

Thermally modified American White Ash cladding by Arbor Wood is sustainably harvested in American forests. Thermally modified Ash hardwood is considered a beautiful option for natural wood cladding. Its natural beauty, unique graining and rich brown tones are sought after by architects and design professionals. The Thermowood™ thermal modification ensures the durability, stability, and rot resistance of your siding project maintains its lasting beauty and high performance for years to come.

Wood Species: North American White Ash

Grade: Premium Clear

Sizes: 1x4, 1x6 nominal

Lengths: Random length, 5' through 12', odds and evens

Profile: T&G (tongue and groove) Nickel Gap

Warranty: 20 years

WUI Approved: Yes

Ideal Use: Residential or commercial siding projects, where natural beauty, lasting quality and sustainability are the top priorities.

Learn more about Arbor Wood Ash cladding in video below:

Seeing is believing. See for yourself:

CHECK OUT THERMALLY MODIFIED CLADDING PROJECT GALLERIES HERE

Arbor Wood Pine Cladding

Arbor Wood thermally modified Southern Yellow Pine siding is domestically sourced and sustainably harvested in responsibly managed forests in the United States. Southern Yellow Pine is an exceptionally hard softwood species, well known for its unique graining, natural beauty, and exceptional strength. This cladding will ensure that your siding project remains beautiful for many years to come. The patented Thermowood thermal modification process increases the stability, durability, insect and rot resistance, and helps minimize unwanted movement, warping and cupping in this durable wood species.

Wood Species: Southern Yellow Pine

Grade: C or Better Clear

Arbor Wood thermally modified pine siding oil finish Arbor Wood natural Pine cladding fluted profile

Sizes: 1x6 (3/4" x 5" actual). 5/4x6 (1" x 5" actual)

Lengths: 6' through 16', even lengths

Profiles: 1x6 T&G (tongue and groove) Nickel Gap, 5/4x6 T&G Fluted

Warranty: 20 years

WUI Approved: Yes

Ideal Use: Residential or commercial siding projects, where beauty, lasting quality and durability are the top priorities.

Learn more about Arbor Wood Pine cladding in the video below:

Thermally Modified Wood Siding Appearance and Finish Options

Arbor Wood is celebrated for its striking appearance, dimensional stability, and durability. The thermal modification process enhances the wood’s natural beauty, imparting richer, darker brown tones. However, as a natural wood product, thermally modified wood siding will weather over time when exposed to outdoor elements. You have options.

Finishing options

Arbor Wood siding is available in a number of tried and true finishes.

Clear Oil Finishes are ideal for Arbor Wood Pine and Poplar Cladding:

For a refined look, a clear oil finish can be applied for natural beauty and initial protection while the cladding seasons on your project.

Burned Pine

For a modern take on the ancient Japanese charring art known as Shou Sugi Ban, Arbor Wood Southern Yellow Pine cladding is available in a burned finish with black oil.

Burned, Brushed and Oil Finish

For a sophisticated and clean charred finish, Arbor Wood southern Yellow Pine cladding is available, burned, then brushed, then oil finished in either black or brown.

Brushed and Oil Finish

Thermally modified Southern Yellow Pine is brushed to expose the wood's natural grain, then oil finished for a clean, traditional look for your home. The Arbor Wood ELMNT collection is available in gray and white finishes.

Arbor Wood ELMNT Brushed Pine with Gray Oil finish

Other Finishing Options

It is recommended to use an exterior UV inhibitive finish for all Arbor Wood materials. This helps protect your cladding investment as it seasons and adjusts to your home. If maintaining a “new wood look” is your goal, using an oil based sealer works great. Alternatively, if you prefer a natural “weathered wood” appearance, simply allow the oil finish to weather off naturally. Over time, it will develop a silvery-gray patina for a low-maintenance, natural wood aesthetic.

What does Arbor Wood thermally modified wood siding look like as it ages? Here is an example of what to expect as your thermally modified cladding ages throughout its life cycle.

Thermally Modified Wood Weathering Cycle explained:

An oil finish will darken the wood, blend the colors and help protect the product initially as it seasons. This is considered a best practice for exterior wood decking materials.
As the oil finish is exposed to the elements, the boards will lighten up quickly to their original unfinished appearance.
Within 6 months to a year or so, depending on the exposure, the wood will continue to lighten up, naturally.
At this point, you can recoat the decking with oil to restore it to the original look. ...OR...
Allow the material to continue to weather out to a silvery gray patina naturally for a low maintenance deck option.

For additional information please download "How Exterior Woods Weather".

How Will Exterior Woods Weather? DOWNLOAD THE GUIDE HERE

Installing Arbor Wood Thermally Modified Wood Siding

Arbor Wood siding is a natural wood product and most standard carpentry skills and techniques apply for a successful cladding installation. There are a few nuances, though, that will help you achieve the best results. Please download and follow the Arbor Wood Cladding Installation Guide before installing.