Benefits Of Shou Sugi Ban

If treated properly, Shou Sugi Ban wood can last over 50 years. This is due to the carbon layering process from charring the wood. Charring adds an extra layer of protection to wood’s structural durability and changes the chemical composition of the wood itself. Hemi-cellulose in wood reacts with flames to minimise rot and infestation. The char layer remaining on wood becomes hydrophobic, which safeguards the wood against moisture and weathering. It also provides additional protection against fire by increasing the temperature threshold needed for combustion, making the charred wood less flammable.

Charred timber is highly durable and weather resistant. This has been extensively tested by many Japanese buildings built over the last few centuries. These structures withstood the test of time.

Shou Sugi Ban wood ages over time to reveal a beautiful patina. Softer species of wood will weather its char layer sooner than hardwood or thermally modified wood. A reapplication of the topcoat will aid in preventing the degradation of the charcoal, and maintain colour consistency of brushed and oiled finishes.

This should be done every 4-5 years in order to preserve wood’s colour vibrancy. However, if you wish to embrace textural richness of patina, reapplication of oils can be done every 10-15 years. We recommend periodical recoating of our products. Atelier TwentyOne can supply finishing oils at your request.

Charred wood is rot resistant due to the process creating a carbon layer that makes it more resilient to environmental threats including fungi, fires, insects and moisture.

Many wood species such as Pine, Larch, Oak, Spruce can be used for burnt wood. Atelier TwentyOne offers a range of charred wood options that each offer benefits depending on your requirements.