Acetylated wood and window replacements

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The radiata pine used to make the material can be sourced from Forest Stewardship Council (FSC)- or Programme for the Endorsement of Forest Certification (PEFC)-certified forests. Further, at least one manufacturer has achieved Cradle-to-Cradle Gold certification—a first for wood products under the McDonough Braungart Design Chemistry (MBDC) program.

Acetylated wood can also contribute to multiple credits under the U.S. Green Building Council’s (USGBC’s) Leadership in Energy and Environmental Design (LEED) v4 program, including:

Materials & Resources (MR) Credit 1, Building Life Cycle Impact Reduction;
MR Credit 2, Building Product Disclosure and Optimization−Environmental rcs data Product Declarations;
MR Credit 3, Building Disclosure and Optimization−Sourcing Raw Materials; and
MR Credit 4, Building Product Disclosure and Optimization−Material Ingredient.
Accoya_MN State Capitol
The $272-million renovation at the Minnesota State Capitol includes restoration of the building’s original wood windows, including replacement sashes made with acetylated wood.


A look at two projects making use of acetylated wood will provide a good sense of how the material can be employed in applications. With respect to window retrofits, the venerable Minnesota State Capitol is undergoing a $272 million, four-phase restoration plan. The project includes restoring the regal exterior designer Cass Gilbert envisioned when the building was completed in 1905.