Accoya offers an industry-leading 50-year warranty for above-ground use. This isn’t just a promise, the warranty is backed by decades of scientific research into acetylated wood, the process that makes Accoya so durable. Real-world testing demonstrates a service life of up to 60 years, highlighting Accoya’s significantly higher durability compared to traditional options. Over the years, independent tests and long-term trials have shown just how well Accoya holds up against rot, insects, and the elements.

Respected organizations like Building Research Establishment (BRE) and TRADA fully support the durability claims of Accoya wood. When choosing wood siding from Accoya, you’re getting not only a beautiful and sustainable product but also the reassurance that it will perform for decades to come.