In recent discussions on the Skill Builder channel, the question of whether timber should be placed in the ground or not has sparked a debate. While most people argue against placing timber directly in the ground and suggest using concrete or alternative solutions, there are some who believe in preserving timber with various methods. However, traditional preservatives are not as effective as they used to be due to safety regulations and reduced effectiveness. One alternative method that has been used for thousands of years is charring the wood, also known as the Yakisugi method.
The Yakisugi method involves charring the outside of the wood, which effectively kills any organic matter on the surface. This not only prevents insects from being attracted to the wood but also inhibits the growth of mold or fungus. In fact, there are timber buildings that are hundreds of years old, constructed using charred wood, which have not shown any signs of rotting.
So, how can you implement this method on your own?
Choose the right type of wood: It is best to use untreated timber for charring. Sawn wood that hasn’t been chemically treated is ideal for this process. This can be easily obtained and is very cost-effective. Avoid using preservative-treated wood for charring, as it may release harmful substances when heated.
Prepare the wood: Before charring, make sure the wood is clean and free from any debris or loose bark. This will ensure a more effective charring process.
Heating the wood: There are two ways to heat the wood for charring - the traditional method and the easier method. In the traditional method, you can use a flame to slowly burn the outside of the wood until it is charred. This requires careful attention and control to ensure the wood doesn’t catch fire. The easier method involves using a heat gun or blowtorch to heat the wood until it becomes charred. This method is quicker and more controllable.
Monitor the charring process: Keep a close eye on the wood while charring to prevent it from catching fire. It is important to only char the outside of the wood, creating a protective barrier without compromising the structural integrity of the timber.
Allow the wood to cool: Once the charring process is complete, let the wood cool down before handling it or using it for construction purposes. This will ensure that the charring is fully set and the wood is ready to be used.
By following these steps, you can effectively preserve wood using the Yakisugi method. It is important to note that this technique is most suitable for outdoor applications, such as fencing, sheds, or siding. Charring the wood creates a protective barrier that helps to increase its lifespan and durability, making it resistant to environmental factors.
In conclusion, the debate between using timber in the ground or opting for alternative solutions is ongoing. However, if you choose to use timber and want to enhance its longevity and protection, the Yakisugi method of charring wood can be a valuable technique to consider. By charring the wood, you create a fire-rated finish that not only repels insects and mold but also forms a barrier against moisture. This ancient method has stood the test of time and can provide a natural and effective solution to preserve wood for generations to come.
Remember, always prioritize safety and avoid charring preservative-treated wood. Choose the right type of untreated timber and follow the charring process carefully to achieve optimal results. By utilizing the Yakisugi method, you can have peace of mind knowing that your wood will withstand the test of time, even when exposed to wet conditions.
This article is intended to provide a comprehensive guide to charring wood for preservation using the Yakisugi method. Whether you’re a DIY enthusiast or a professional builder, incorporating this technique into your projects can significantly enhance the durability and longevity of wood structures.
