Accoya® wood represents a major development in wood technology that has made the consistent supply of durable, dimensionally stable and reliable wood a reality. It has a long list of performance credentials, which have been extensively researched and repeatedly demonstrated. One of the many benefits of Accoya is durability and it’s ability to withstand moisture.
We have all had pieces that swell and shrink due to moisture, especially here in Bermuda. However Accoya has reduced that issue by more that 75%, providing us with doors and windows that open effortlessly year round.
How? Let us Explain…Accoya Wood releases moisture in dry climates and absorbs moisture in humid conditions. The moisture within wood takes two forms: “free water”, which is contained in the cell cavities (or lumen), and “bound water”, which is contained in the cell wall matrix. While Accoya® wood in any conditions will have minimal bound water, which is what accounts for many of its superior properties, it can still contain free water. Final product quality can be harmed by excessive free water; it is therefore essential that the moisture content of the wood is determined prior to processing, gluing and coating.
Another reason to use this amazing wood: Accoya wood has outstanding durability, lasting 50 years above ground and 25 years in-ground / freshwater. It is virtually rot proof. Which is why we love it so much in Bermuda.
Accoya wood is resistant to salt and can be used around saltwater (for instance as marina decking). However, permanent emersion of Accoya in salt and brackish water (i.e pilings) is not recommended since the acetylation treatment is not warranted for resistance against marine borers and other marine organisms.
Accoya® wood typically absorbs moisture more slowly than other species. However, (liquid) water absorption can be deep and it takes longer to dry out than most species. This is one reason that extra care should be taken in storage and why measurement for possible excess water should be to the core of boards.
That being said this is definitely a type of wood to consider for your next project. As an island that battles humidity and moisture on a daily basis this wood will give your next piece a longer and more beautiful life.