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Charred Timber Cladding

Charred timber cladding, or Shou Sugi Ban, is a traditional Japanese wood charring technique that creates a striking burnt, textural look. The process creates a black carbon layer on timber boards that promotes long term durability. Shou Sugi Ban is popular among leading architects and builders for its natural look and unique appearance.

Internal Timber Cladding Ireland

SHOU SUGI BAN A brief history.

Shou Sugi Ban, also known as Yakisugi, derives from an ancient Japanese exterior cladding treatment used to preserve wood by charring it with fire. The treatment was introduced after Japan fell into short supply of driftwood which was collected from the coastlines for its prized appearance and durability after enduring a natural treatment process of saltwater, surf and sun.

Traditionally the timber used for charring was ‘Sugi’ wood, Cryptomeria, commonly known as Japanese Cedar which was used for residential exterior cladding, fencing and decking applications.

The term Shou Sugi Ban 焼杉板 simply translates to ‘burnt cedar board’.

We supply timbers that can now combine the ancient craft of fire treatment with precision milled architectonic cladding profile. The timber is thermally modified before being stained, brushed and embossed to recreate the texture of charred wood without the residue. This highly controlled process gives a higher level of dimensional stability and reliable results every time.

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Maintenance Free Timber Cladding 

The most practical feature is that your maintenance is dramatically reduced. 

The improved characteristics of timber that has been properly charred allow this the timber cladding to resist UV and the environment, seldom requiring maintenance. The charring of timber case-hardens the cells giving improved UV and weather resistance.

In Japan, charred timber cladding was traditionally never oiled, and many examples can be seen that have lasted over 80 years.


Today the best practise is to oil stain once prior to installation and again within 6 weeks of installation. Although oil stain reapplication rates are dependent on local site conditions, we estimate the charred timber to only require oil every 5 to 7 years. 

The charred timber is stronger than natural timber cladding, and most home-owners agree Yakisugi improves its look over time due to the natural ageing process.  Some home-owners choose to stain their once every 5 -7 years to keep that fresh new colour look, but this is not necessary.* 

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