Red oak is a beautiful and durable wood commonly used in outdoor construction. It has a natural resistance to decay, making it a popular choice for furniture, decking, and other outdoor structures. However, to ensure that red oak lasts for many years, it is essential to treat it properly before exposing it to the elements. In this article, we will discuss how to treat red oak for outdoor use.
Also read: Pickling Oak
Proper Seasoning
Before finishing red oak, it is crucial to ensure that it is adequately seasoned. Seasoning is the process of allowing wood to dry naturally until it reaches an equilibrium with its environment. This process is critical because it reduces the wood’s moisture content, making it less susceptible to decay and warping.
How to season red oak
Stack your red oak in a dry, well-ventilated area. Protect your oak from direct sunlight and rain to prevent it from warping or cracking. Ideally, the wood should be stacked in a single layer with spacers between each board to allow for proper air circulation.
How long does it take for red oak to season?
The length of time it takes to season red oak depends on several factors, including the wood’s thickness, moisture content, and the ambient humidity and temperature. A general rule of thumb is that it takes one year to season wood that is one inch thick. However, the best way to determine if the wood is adequately seasoned is to use a moisture meter to test its moisture content.
Ground Contact
Red oak that is in direct contact with the ground is at a higher risk of decay and rot. Therefore, it is essential to avoid ground contact whenever possible. If you must use red oak in ground contact applications, such as fence posts or retaining walls, it is crucial to use pressure-treated lumber.
What’s pressure-treated lumber?
Pressure-treated lumber is wood that has been infused with chemicals that make it resistant to decay and rot. The chemicals used in pressure-treated lumber can be harmful to humans and the environment, so it is essential to follow proper handling and disposal procedures.
How do you seal oak for outdoor use?
Paint
The most effective way to protect red oak from the elements is to paint it. Paint creates a barrier between the wood and the environment, preventing moisture from penetrating the wood and causing decay. Paint also provides excellent UV protection, preventing the wood from fading or turning gray.
When painting red oak
It is crucial to use high-quality exterior paint that is specifically designed for wood. The paint should contain a mildewcide to prevent mold and mildew growth and a UV inhibitor to protect the wood from the sun’s harmful rays.
Before painting, the wood should be sanded smooth and clean of any dirt, oil, or debris. It is essential to use a primer before painting to ensure that the paint adheres properly to the wood. The primer should also contain a mildewcide and a UV inhibitor.
Polyurethane
Polyurethane is a clear, durable finish that provides excellent protection for red oak while revealing its natural beauty. If you hate having to cover your beautiful red oak with paint then just go with a coat of poly.
How poly protects your red oak
Polyurethane creates a barrier between the wood and the environment, preventing moisture from penetrating the wood and causing decay.
Stain options with poly
When using polyurethane on red oak, you can choose to stain the wood first to alter its tone. Staining the wood can enhance its natural beauty and provide additional UV protection. Once the wood is stained, it should be allowed to dry completely before applying the polyurethane.
Before applying the polyurethane, it is essential to sand the wood smooth and clean of any dirt, oil, or debris. It is also important to use high-quality exterior polyurethane. The polyurethane should be applied in thin coats, allowing each coat to dry completely before applying the next.
Conclusion: Can red oak be used outdoors?
Yes, red oak can be used outdoors, but it is essential to treat it properly before exposing it to the elements. Proper seasoning is crucial to reduce the wood’s moisture content and make it less susceptible to decay and warping. Additionally, it is important to avoid ground contact whenever possible or use pressure-treated lumber if ground contact is necessary.
In conclusion, treating red oak properly before exposing it to the elements and choosing the right finish is crucial to ensure that it lasts for many years in outdoor applications. Proper maintenance, including regular cleaning and reapplication of finishes, can also help extend the wood’s lifespan.
