External Cladding – Yakisugi

If you are thinking of an original and aesthetically pleasing exterior finish to your project, Yakisugi may be a good option for you.  Yakisugi, also known as shou sugi ban, is a traditional Japanese technique of charring wood to preserve it. It is typically used on exterior cladding, fencing, and other wooden structures. Here are its main advantages:

 

1. Durability and Longevity

  • Charring the surface makes the wood more resistant to weather, pests, and rot.
  • The carbonized layer acts as a natural protective barrier, reducing the risk of decay and extending the wood’s lifespan significantly.

2. Pest Resistance

  • The charring process makes the wood less attractive to pests like termites, which are unable to digest the carbonized layer effectively.

3. Low Maintenance

  • The burnt layer is relatively maintenance-free compared to untreated or painted wood. It does not require frequent reapplication of paint or sealant.

  • Natural weathering over time often enhances its appearance rather than detracting from it.

4. Fire Resistance

  • The charred layer itself is fire-resistant to a degree because it lacks the volatile organic compounds (VOCs) that typically fuel combustion.

5. Sustainability

  • Yakisugi uses natural processes without relying on chemical treatments or paints, making it environmentally friendly.

  • The technique enhances the utility of certain wood types, reducing the need to harvest hardwoods or chemically treated alternatives.

6. Unique Aesthetic

  • The charred surface has a distinctive and elegant appearance, with rich textures and deep colors that range from matte black to silvery

    gray, depending on finishing techniques.

  • The aesthetic works well in modern, rustic, or traditional designs.

7. Water Resistance

  • Charring closes the pores of the wood, reducing its ability to absorb water and making it more resistant to swelling, warping, or cracking.

8. Natural UV Protection

  • The carbonized layer helps protect the underlying wood from UV damage, reducing discoloration and structural weakening from prolonged sun exposure.

9. Versatility

  • While traditionally used for siding, yakisugi can also be used for decking, furniture, and even artistic projects, providing the same benefits.

10. Cultural and Historical Value

  • Incorporating yakisugi can add a sense of cultural significance and historical respect to architectural projects, particularly those inspired by Japanese design principles.

Below: Residential side extension to a detached house in south London, using Yakisugi for the external cladding

Bottom: Residential project in Dorset, using Yakisugi for most of the exterior