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The Longevity of Accoya Wood in Exterior Projects

Timber Knowledge Tips & Guides
01 January 0001 min read

When it comes to choosing the perfect wood for exterior projects, durability and longevity are paramount. One choice that's gaining significant attention is Accoya wood. With its remarkable strength and impressive lifespan, Accoya is rapidly becoming the material of choice for those seeking excellent endurance in their outdoor projects.


In this blog, we explore Accoya wood’s attributes and applications and explain why it's becoming the preferred option for those seeking long-lasting quality in their outdoor projects.


What Is Accoya Wood?

Accoya wood isn't your average timber; it's a specially treated type of wood that undergoes a process known as acetylation. This process alters the wood’s cellular structure, significantly enhancing its natural attributes.


The result is a high-performance wood that outperforms traditional timber in many ways. What’s more, Accoya wood is sourced from sustainable forests and is known for its exceptional quality and longevity, making it an excellent choice for outdoor projects. 


Advantages of Accoya Wood

Accoya wood offers many advantages, including the following: 


The acetylation process Accoya timber undergoes ensures that it is highly resistant to decay, insect damage, and fungal growth. Unlike untreated wood, Accoya wood can withstand the harshest weather conditions without compromising its integrity. This remarkable resilience ensures your projects remain structurally sound and visually appealing over time.


Accoya’s reduced moisture absorption means it's less prone to warping, twisting, cracking, and dimensional changes. This stability is particularly crucial for exterior projects exposed to varying humidity levels and temperature fluctuations.

Enhanced Coating Performance

Accoya wood's improved dimensional stability allows coatings to last longer, reducing maintenance requirements. This means less time, effort, and money spent on refinishing or repainting your exterior projects.

Low Thermal Conductivity

Accoya wood has low thermal conductivity, making it an energy-efficient choice for windows and doors. It helps to minimise heat transfer, keeping your interior spaces comfortable and reducing energy consumption.


Accoya timber is an eco-friendly choice that aligns with modern environmental values. It’s sourced from responsibly managed forests and is certified by leading environmental organisations, including the Forest Stewardship Council. 


Accoya wood’s biodegradability also ensures that, even after its extended lifespan, it leaves a minimal environmental footprint.


Applications of Accoya Wood in Exterior Projects

Accoya wood's versatility makes it suitable for various exterior applications, including:


Accoya cladding provides an attractive and durable solution for exterior walls. Its dimensional stability and resistance to moisture and UV rays make it an ideal choice for cladding applications.


Accoya decking is a popular choice for outdoor spaces, such as patios, terraces, and garden areas. Its enhanced durability and stability make it resistant to weathering, foot traffic, and moisture.


Additionally, Accoya is considered slip-resistant as the acetylation process makes the wood’s surface more textured.

Windows and Shutters

Accoya windows and shutters offer exceptional durability, energy efficiency, and aesthetic appeal. The wood's stability ensures that your windows operate smoothly, while its low thermal conductivity helps to reduce heat loss, contributing to energy savings and a comfortable living environment.


Accoya doors combine beauty and functionality, providing long-lasting performance and enhanced security. The wood's durability and stability make it resistant to warping or twisting, ensuring that your doors continue to function properly over time.

Exterior Furniture

Accoya timber is highly versatile and can be used for furniture items and playground equipment. Accoya items are resistant to warping, cracking, moisture, and insect damage, making Accoya an excellent choice of material.


Longevity and Maintenance

Thanks to its inherent properties, Accoya wood can outlast many other wood types when used in exterior projects. In fact, Accoya comes with a 50-year warranty for above-ground applications and a 25-year warranty if used in the ground or freshwater.


This longevity is further enhanced by its low-maintenance requirements. Regular cleaning and occasional resealing are usually sufficient to keep Accoya wood looking and performing its best.


Here are some maintenance tips to ensure the longevity of your Accoya wood projects:

Maintenance Tips

  • Use a mild soap and water solution to clean dirt and debris that could build up and damage the wood.

  • Don’t use any harsh cleaners or chemicals.

  • Avoid using pressure washers.

  • If the wood is damaged, repair the area promptly.

  • Be careful not to over-sand Accoya wood, which can damage it.

  • Reseal the wood every few years. Teak and linseed oil are good options.

  • If you are staining Accoya wood, use a water-based stain.


Potential Disadvantages of Accoya Wood

While Accoya wood offers numerous advantages, there are still some potential disadvantages to consider:


Accoya wood is generally more expensive than traditional timber due to its unique properties and manufacturing process. However, its long-term benefits and durability often outweigh the initial investment.


Depending on the region, Accoya may not be as readily available as other more common wood types. This can affect lead times and, again, cost.


The acetylation process can sometimes change the appearance of the wood. Some users might notice slight darkening or other colour changes, especially when compared to untreated wood of the same species.


Specialised installation techniques may be required for Accoya wood, particularly for larger projects such as cladding or decking. This may drive up labour costs and require skilled professionals to ensure proper installation.


Superior Exteriors Await with Accoya from Woodshop Direct

Accoya wood is reshaping the landscape of exterior projects, offering an exceptional combination of durability, stability, and sustainability. If you're looking for Accoya wood for your next outdoor project, look no further than Woodshop Direct, an accredited Accoya stockist. We proudly offer top-quality Accoya wood tailored to your needs and are committed to providing the best customer service. 


Whether you're building a deck, cladding, or a garden structure, Accoya wood is guaranteed to stand the test of time.