What is Accoya wood?

Timber front door with timber beams surrounding

Accoya wood is chemically modified timber. Natural softwood is put through an acetylation process to enhance its characteristics. Accoya is durable, sustainably sourced, and thermally efficient. Its superior strength and attractive aesthetic make it the perfect material for creating bespoke windows and doors.

The Accoya wood acetylation process

Wood acetylation is a scientifically proven method of improving the properties of natural timber. During the acetylation process, the softwood is treated with acetic anhydride. This alters the cell structure of the softwood, transforming the naturally occurring free hydroxyls into acetyl groups.

Once the process is complete, the Accoya wood is harder, more durable, and more resistant to rot. Its capacity to absorb water is reduced by up to 80% making it far more dimensionally stable. Furthermore, the compositional alteration that occurs means that fungi does not recognise Accoya as a wood and will not attack it. The process also makes Accoya indigestible to insects, eliminating the risk of infestation.

The benefits of using Accoya wood

At Kirkman Joinery, we take timber seriously. All our timber products are hand-crafted at our Buckinghamshire workshop. Accoya wood is a big part of our manufacturing and installation service. If you’re planning a window and door installation, Accoya wood could be the right choice for you. When you choose Accoya, you get:

  • Improved durability – Accoya wood will last for at least 50 years exterior use.
  • Less maintenance – Once Accoya has been varnished or painted, it only requires the occasional wipe clean to keep it in the best condition.
  • Better thermal efficiency – Accoya’s composition makes it an excellent insulator, helping to keep your home warm and reduce energy bills.
  • Attractive aesthetics – Accoya provides a smooth and stylish finish, perfect for any property type.
  • Conservation area compliance – Accoya wood has been approved for use in conservation areas across the UK.

Accoya wood is an excellent option for any home improvement project. If you’d like more information about Accoya, contact Kirkman Joinery today. Call us on 01494 461 116 or send us a message online.