Hakuu Patina
Hakuu Patina
Charred + Unbrushed + Coated
Traditional charred Yakisugi Japanese cedar, unbrushed and coated for a colour-stable, weather-resistant finish
Product Overview
Hakuu Patina in the Charred · Unbrushed · Coated specification pairs traditional Yakisugi heat-charring with a premium, breathable protective coating. Boards are left unbrushed so the charred surface retains its tactile, layered grain, while the coating stabilises tone, repels moisture and reduces surface dusting for a predictable, long-lasting exterior appearance. This finish forms part of the Hakuu Yakisugi range for projects requiring controlled patina and reduced maintenance.
Key Features
-Authentic Yakisugi base – heat-charred Japanese cedar for genuine texture and depth.
-Unbrushed surface – preserves the raw, tactile char and visible grain for true wabisabi character.
-High-performance breathable coating – UV-resistant, moisture-repellent finish that slows uncontrolled fading and reduces dusting.
-Predictable patina – coated finish keeps the designer-intended tone longer while still allowing subtle, natural ageing.
-Durable detailing – coating improves resistance to surface degradation compared with unoiled char.
-Flexible offerings – available as cladding, battens and feature timbers in custom sizes and profiles.
-Spec-ready – compatible with standard timber-cladding best practice and stainless-steel fixings.
Use Cases
-Premium exterior facades where retained charcoal tone is critical to the design intent.
-Hospitality and residential entrances, porte-cocheres and feature walls where texture and lower maintenance are required.
-Balconies, pergolas and external joinery exposed to variable weather that need coating protection.
-Interior feature ceilings and framed elements where charred texture is desired without surface dusting.
-Screening, battens and shading devices where long-term appearance stability matters.
profiles and dimensions
(mm)
Specifications
Our boards are supplied in two profiles, tongue and groove or shiplap.
Species, thickness and length are the same across both; only the cover width differs:
- Species: Cryptomeria japonica (Japanese cedar / sugi), density 350 to 420 kg/m3
- Board width: 140mm total. Cover width 122mm for tongue and groove, 129mm for shiplap. Use the cover width for take-off, not the 140mm face.
- Thickness: 21mm
- Length: 3,930mm
- Serviceable life: 30+ years
- Moisture content: 14% or lower at installation
The low density that makes sugi easy to handle and quick to install is the same property that gives genuine shou sugi ban its character. It is a cladding board, designed and milled for the wall.
Installation Tips
Actionable specification tip: Always include a ventilated back cavity, stainless steel fixings (use 316/A4 in coastal zones) and leave a 6–10 mm expansion gap to accommodate seasonal movement. Pre-finish cut edges with the supplied breathable, UV-stable coating (do not use non-breathable sealers); expect recoats every 2–3 years in coastal exposure and 4–6 years inland.
Request a coated sample or the full technical spec sheet via studiotsukuru.com.au.
FAQ
Hakuu is a Yakisugi a.k.a Shousugiban charred timber cladding crafted from premium Japanese cedar (sugi). It features a smooth, understated surface texture, combining the traditional charring technique with modern finishing for a refined appearance and high durability.
Only carefully selected straight-grain logs are used, undergoing the traditional Yakisugi charring process. All brushing and coating are carried out in Melbourne to ensure consistent quality, precise colour control, and performance tailored to Australian conditions.
Hakuu is suitable for both exterior and interior applications, including wall cladding, interior feature walls, decking, railings, and pergolas. With UV and moisture resistance, plus a breathable, non-film-forming finish, it delivers long-lasting performance across a variety of climates.
The surface is highly water-repellent, allowing rainwater to run off naturally. When left unoiled, Hakuu will gradually develop a natural patina over time. If desired, re-oiling can be applied in the future to maintain or enhance colour and protective performance.