Accoya
Accoya offers excellent durability and dimensional stability. Coating and maintenance requirements vary depending on the application, especially for windows, doors and exterior joinery.
Accoya modified wood has become the lumber industry benchmark when it comes to performance and sustainability.
No other wood offers the same combination of durability, stability and versatility. Sustainably sourced, and with a low total lifetime carbon cost, Accoya actively contributes to a circular, bio-based economy and is one of the few truly sustainable building materials.
Through a precise acetylation process using acetic anhydride, combined with just the right heat and pressure, we increase moisture-resistant acetyl groups and reduce the water-attracting hydroxyl groups.
Important: Coating guidance differs by application. Accoya cladding and decking may be suitable for uncoated use depending on project requirements, but Accoya windows, doors and exterior joinery should generally be coated with a suitable coating system.
What is Accoya Wood?
Cladding
Accoya cladding offers excellent durability and dimensional stability. Appearance, colour and surface weathering will vary depending on coating choice, exposure and maintenance.
With a 50 year above ground warranty, low maintenance needs and excellent coating performance, Accoya is ideal for any design style from natural weathering to painted or charred finishes.
Sustainably sourced and FSC® certified, it is the premium choice for long lasting, eco friendly cladding.
Decking
Brilliance for generations to come
For a low maintenance decking that withstands wear and tear in any climate, Accoya is the answer.
Resistant against cracks and splinters with superior stability compared to typical decking materials, Accoya combines the charm of real wood with exceptional performance credentials.
Ideal for extending your living space to the great outdoors – barefoot and fancy free.
If left uncoated, Accoya decking will naturally weather over time. Coating or oiling may be used where a specific appearance is required.
Windows and doors
Accoya is the ultimate timber choice for windows and doors, combining natural beauty with unmatched durability.
Its outstanding stability means frames won’t warp, swell, or jam, ensuring smooth operation year-round. With exceptional coating performance, Accoya joinery requires less maintenance while retaining a premium finish.
For Accoya windows, doors and exterior joinery, coating is strongly recommended. A suitable high film build coating system helps reduce moisture uptake, minimise the risk of surface checking and support long term performance. Please contact our technical team before specifying or installing uncoated Accoya joinery.
ITI NZ is a proud supplier of Accoya, delivering sustainable, high-performance solutions built to last.
