Redefining

the world of wood

Accoya is a revolution in modified dimensionally stable wood, delivering remarkable levels of performance. A product made to last.

Wood to change the world

Accoya wood is made by Accsys at its plant in Arnhem, in the Netherlands.

Accsys transforms fast-growing, certified sustainable wood into Accoya wood through its proprietary acetylation process.

 

The result is high performing sustainable lumber with sustainability credentials that exceed those of man-made, intensely resource depleting and heavily carbon-polluting alternatives.

 

This gives the world the choice to build sustainably, offering new opportunities in sustainable building materials.

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Watch the Accoya story

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outstanding
Why us?

outstanding

products to last a lifetime

Since its launch in 2007, hundreds of manufacturers have made Accoya their material of choice in homes and buildings for applications such as windows, doors, decking and siding. Some of the most architecturally significant projects in the world have featured Accoya for both its performance and versatility.

ACETYLATION PROCESS

How it works

1
Hyrdoxyl Groups – Hydroxyls are hydrophilic (attract water), causing cellulose to swell (and shrink when subsequently dried) and become more susceptible to attach by biological organisms
2
Acetyl Groups – Wood cellulose contains a small number of naturally occurring acetyl groups which are hydrophobic (repel water). There are an insufficient number of acetyls in natural wood to provide durable, stable performance.
3
Acetylation – Reaction of wood with acetic anhydride (concentrated acetic acid) at high temperature to precisely increase the level of moisture resistant acetyl groups.
4
Accoya Acetylated Wood – Contains the same constituents as natural wood, just at enhanced levels. There are now more of the moisture resistant groups and less of the moisture binding groups. This delivers high performance through increasing dimensional stability and enhanced biological durability. The perfect sustainable building material!
1
Hyrdoxyl Groups – Hydroxyls are hydrophilic (attract water), causing cellulose to swell (and shrink when subsequently dried) and become more susceptible to attach by biological organisms
2
Acetyl Groups – Wood cellulose contains a small number of naturally occurring acetyl groups which are hydrophobic (repel water). There are an insufficient number of acetyls in natural wood to provide durable, stable performance.
3
Acetylation – Reaction of wood with acetic anhydride (concentrated acetic acid) at high temperature to precisely increase the level of moisture resistant acetyl groups.
4
Accoya Acetylated Wood – Contains the same constituents as natural wood, just at enhanced levels. There are now more of the moisture resistant groups and less of the moisture binding groups. This delivers high performance through increasing dimensional stability and enhanced biological durability. The perfect sustainable building material!

Useful resources

Decade of

durability

where Accoya has been put to the test

Take a look at some Accoya projects from the last decade. These projects provide powerful evidence of Accoya’s extreme durability across both domestic and commercial applications. The results speak for themselves and demonstrate Accoya’s suitability for applications such as windows, doors, decking and siding. Durability is just one factor in Accoya’s appeal to design experts and consumers alike. Find out more.

Built in 2010, this beach restaurant situated by the North Sea features Accoya windows, doors and siding. Today, Accoya still looks impressive, providing a wonderful example of Accoya’s durability.

World’s first Accoya-clad home, located near Glenrothes in Fife, Scotland. Since installed late 2006, the only maintenance has been a clean with mild soap to return the Accoya cladding back to new.

Beautiful commercial building in Pune, India was made with Accoya cladding. The architect was looking for a long lasting material to compliment his design. Accoya still looks good over 10 years on.

In 2008, Accoya windows were installed on Belle Tout Lighthouse at Beachy Head. Upon recent inspection there were no signs of rot or decay, proving Accoya lives up to the challenge, even by the sea.

Where to Buy

You can buy Accoya and Accoya products from our selection of distributors or manufacturers in your region. Use our map search tool to find your nearest Accoya supplier.

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