Is oak timber suitable for exterior cladding?
Yes. Oak is durable, strong, and due to the tannin content it's naturally resistant to decay and insect damage, making it ideal for long-lasting cladding. Our Oak Cladding boards are sourced from logs harvested in English woodlands, providing a sustainable and native product in which to clad your building.
What buildings are suitable for waney edged oak cladding?
With their natural live edge and striking grain structure, our waney edged oak cladding boards bring a rustic charm to barn conversions, renovation projects, or can be used to create an architectural statement on commercial buildings. They also soften the appearance of large gable ends on newly built homes, combining beauty and functionality in every board.
What type of fixings should be used for oak cladding?
For external oak cladding, stainless steel fixings (A2 or A4 grade) are essential. Oak contains tannins that can react with iron-based metals, leading to black staining and corrosion. Stainless steel avoids this issue and offers durability.
Best Fixings:
Stainless steel screws are preferred for structural security, removability, and precision. We recommend using 4-5mm diameter wood screws and drilling pilot holes to avoid oak boards splitting, especially near ends.
Alternatives:
Stainless steel annular ring nails may be used for a cleaner aesthetic or in traditional applications, especially in hidden fixing. Pneumatic nail guns are often used for speed, however you must be careful not to split the oak cladding boards.
Avoid:
Galvanized, zinc-coated, or mild steel fixings as they will corrode and stain oak.
How should external oak cladding be fixed?
Our waney edged oak cladding is suitable for use as a rainshield when fixed to battens ensuring ventilation gaps and installed over weatherproof membranes. Battens should ideally be spaced at 400–500 mm centres.
As fresh cut oak will expand and contract with humidity and seasonal changes, its important leave expansion gaps (3–5 mm) between boards lengths. To help compensate for shrinkage and expansion, you could create oval holes (or slots) for fixings to allow some lateral movement. Using two fixings per board width is recommended to help reduce cupping, especially on wide boards.
We recommend using 4–5 mm diameter stainless steel wood screws and drilling pilot holes to avoid splitting the oak cladding boards, especially near ends. You may wish to countersink your screws if you plan to leave them exposed.
Can oak cladding be installed over insulation?
Yes, especially for external applications. A breathable membrane and battens are used to create a ventilated cavity over the insulation.
Does green oak cladding need treatment?
Our Green Oak sawn finish cladding will naturally weather to a silver-grey patina. However, UV oils or stains can be applied if you want to preserve the original colour.
How long does green oak cladding last outdoors?
With correct installation and ventilation, oak cladding can last 25–50 years or more.
How do you clean waney edged oak cladding?
Check your boards for any damage before cleaning and make any necessary repairs. To clean your waney edged oak cladding, use a soft brush or cloth to remove dust and debris. For exterior boards, you can gently wash with mild soapy water and rinse thoroughly with clean water. Avoid using harsh chemicals or pressure washers, as these can damage the grain structure and tannin-rich surface. After cleaning, allow the boards to dry naturally. For long-term maintenance, consider applying an appropriate oak oil or preservative to enhance durability and maintain the rustic charm.
