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Accoya Deep Charred Raw

Charred Wood Finish (Shou Sugi Ban) by Atelier TwentyOne

Application
Cladding, Fencing, Interior
Finish
Deep Charred Raw
Profile
Square edgeSquare edge
Shiplap UYSShiplap UYS
Shiplap UYVShiplap UYV
BattensBattens
Width
95mm, 118mm, 144mm
Thickness
21mm
Length
3000mm, 4200mm
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About Accoya Deep Charred Raw

Without visible knots, Accoya offers an elegant and aesthetic finish that will subtly enhance your cladding – whether treated or left raw for a more minimalist look.

  • Allow wood to acclimatize on-site for at least 5–7 days before installation.
  • Orientation: horizontal, vertical, or diagonal, depending on design and/or profile.
  • Use kiln-dried structural timber battens (C24) or an aluminium cladding system, spaced max. 400–600 mm, depending on board size.
    Ensure continuous rear ventilation with a minimum 20 mm air gap behind the cladding.
  • Install a UV-resistant façade membrane suitable for open-joint and ventilated rainscreen systems.
  • Use flashing to protect open cavities and exposed areas where required.
  • Use self-drilling stainless steel facade screws (grade A2 or A4); pre-drill where necessary to avoid splitting.
  • Hidden clip systems may be used depending on the profile.
  • Seal all saw cuts with a compatible touch-up or finishing oil to maintain performance and appearance.

Re-oiling every 4–5 years is recommended if colour retention is desired.

  • Country of origin: New Zealand (Radiata Pine)
  • Fire Resistance (EN 13501-1):
    • Untreated: D-s1, d0
    • Treated: B-s2, d0
  • Use Class (EN 335):
    Class 1–4 – suitable for use outdoors above ground, in-ground, and freshwater contact

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