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, … Continue reading →