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Accoya is the diamond hardness of all charred timbers.
What is Accoya ?
Accoya is a remarkable transformation of a fast-growing, renewable timber. In its raw form, this timber, Pinus Radiata, is not particularly durable or stable. However, thanks to Accoya’s innovation, it has become the best timber cladding product on the market.
Accoya is made from New Zealand-grown plantation pine. The raw timber is treated with a natural, non-toxic fluid in a process called acetylation. This fluid, which is similar to vinegar, changes the timber’s cell structure, making it incredibly strong and durable. We like to call it "Pickled Pine."
The result is a highly stable timber with natural durability that lasts for generations. It’s a class 1 timber in terms of durability and is perfect for charring, making it one of the best timbers for Shou Sugi Ban.
Charred Accoya
Accoya Suyaki finish
Accoya is the best wood for Shou Sugi Ban. The charred finish on Accoya is truly beautiful. Its texture looks like fine snake skin and changes with the light throughout the day.
The char on Accoya is incredibly hard, strong, and long-lasting. Shou Sugi Ban with Accoya is the only cladding that doesn’t need oil maintenance.
A common question is, “Will the char rub off on my clothes?” The answer is no. Once it’s installed and oiled, it’s a clean finish.
The black char layer combined with Accoya creates a no-maintenance cycle. It protects the wood from UV rays and heat, and the char won’t fade from sun exposure.
Accoya Gendai finish
These photos show Accoya with a charred and brushed finish. The Gendai finish, though char-free, still retains the subtle texture of the original char pattern.
It’s a great choice for both cladding and interior use, offering beauty and durability.
With well placed lighting this textured finish dances in the light and turns a plain wall into a fascinating area of interest.
