Name: Oak Cladding
SKU: ACCC
Availability: InStock

8 linear metres per m2

Key Features & Benefits

Some of the standout qualities of oak cladding include:

Durability & natural resistance: Oak is denser and more durable compared to many softwoods. Oak is extremely rot and insect resistant and a density in the range ~750 kg/m³-850 kg/m.
Aesthetic appeal: Oak has a warm natural tone, attractive grain pattern, which over time outdoors often weathers to a soft silvery-grey patina when left untreated.
Low maintenance (relatively): When properly fixed and installed, oak cladding may need less frequent treatment than many softwoods; it requires minimal cleaning and oiling.
Profile/versatility: Oak cladding is available in many profiles: board-on-board, tongue & groove (T&G), shiplap, feather-edge, battens/slats for both exterior and interior use.
Sustainability potential: If sourced responsibly (e.g., from certified forests) oak can be a sustainable choice, and its long lifespan helps reduce replacement frequency.
Installation & Application Considerations
Sub-structure & ventilation: For exterior cladding you’ll typically mount battens over a weather-resisting barrier, allow airflow behind the cladding so the timber can “dry out”. Many systems refer to rainscreen design.
Orientation & overlap: If using feather-edge or board-on-board, ensure correct overlap or shadow gap to shed water and minimise water ingress. It must be allowed for shrinkage; boards will shrink slightly once fitted and recommends overlap ~35 mm.
Orientation options: Cladding may be installed horizontally or vertically depending on aesthetic and function. Cladding sections can be fitted horizontal and vertical.
Pre-drilling & fixings: Oak is dense; many suppliers recommend pre-drilling and using screws or nails appropriate for hardwood. Oak – Pre-drilling, and screw fix would be recommended.
Shrinkage & movement: If using green (fresh-sawn) oak, be aware of shrinkage/movement as it dries—this can lead to gaps or warping. Fresh-sawn boards will shrink as they dry out and coverage may be 40-50mm less than overall depth for fresh sawn.
Weathering & maintenance: Over time the color will change; some like the silver patina and leave it untreated, while others prefer sealant or oil finish. Oak will weather to a soft silvery-grey when used externally.
Edge/perimeter treatment: End grains can absorb moisture — ensure correct detailing at ends, returns, corners.

8 linear metres per m2

Key Performance Characteristics (Cladding)

Property	What Accoya Delivers / Claim	Notes / Citations
Durability / Rot resistance	Equivalent to Class 1 (highest durability class) in many assessments.	Because of the modification, wood-resisting decay and insect attack is much improved.
Stability / Dimensional Movement	Very low movement (shrinkage/swelling) when exposed to moisture cycles.	BM TRADA tests show Accoya is more stable than many traditional cladding woods (cedar, larch, thermally modified pine)
Warranty	Up to 50 years above-ground in normal cladding use (when designed/installed correctly)	For use less than 20 cm above ground or non-ideal detailing, a 25-year warranty might apply.
Coatings / Finishing	It is ideally suited to coatings (opaque, translucent, textured) because its dimensional stability helps coatings last longer.	There are guidance and spec sheets for translucent, opaque, and factory-applied coatings.
Low Maintenance	Because of its inherent stability and durability, ongoing maintenance is lower compared with many untreated timber species.	Though “low maintenance” doesn’t mean “no maintenance” — coatings, sealing, periodic inspection are still recommended.
Sustainability / Environment	Accoya is made from sustainably sourced wood, no toxic preservatives, and can contribute to low carbon / green building goals.	Accoya offers Environmental Product Declarations (EPDs) and certifications for its products.