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As the first company to produce acetylated wood on a commercial scale, Accoya® is leading the charge in providing durable and dimensionally stable wood for a variety of applications. In the acetylation process, softwood is essentially turned into a hardwood through the introduction of a non-toxic vinegar-like solution, creating a new type of wood that is durable all the way through the board, not just on the surface. In practice, this allows for a wood product that is significantly protected against the elements, making it perfect for installation in exterior environments where a standard sealed wood product would fail after only a short amount of time.

At Hewn, we build upon the extraordinary properties of Accoya® wood by applying our proprietary color and finish techniques to create beautiful, unique, and long-lasting wood products, suitable for a variety of applications, and customizable for the specific needs of your project.

Custom Options

Hewn’s Accoya® Paneling and Siding can be customized to fit the individual needs and specifications of your particular project. Our finely skilled craftsmen can modify nearly any part of our in-house process to create a material designed according to your specifications, and our color technicians can match any shade or tone provided to us as part of our custom sampling process. Please contact a Hewn sales representative for more information.

Specifications

Dimensions

Widths: 1×6, 1×8
Thickness: 3/4″, 7/8″, 1½”

Durability

Greater than 9 rating per AWPA E7

Moisture Content

3-5 % at 65% relative humidity, 20°C

Density and Spread

65% RH, 20°C, Average 32 pcf, Range 27 to 37 pcf

Fire Rating

Class C (ASTM E84) and D (EN14915)

Thermal Conductivity

ASTM C177, = 0.102 – 0.120 W/m∙K

Janka Hardness

ASTM E143, Tangential = 972 psi, End Grain = 1,484 psi

Certification

Approved by WDMA as compliant with WDMA I.S. 4. Certified as compliant with Cradle-To-Cradle with Platinum Level Material Health Certificate.

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