Yakisugi (Shou Sugi Ban)
Frequently Asked Questions
Shou Sugi Ban NZ - Frequently asked questions
How long will shou sugi ban last?
Shou sugi ban will out last any other naturally durable timber cladding available in New Zealand. 20 years is our minimum estimated time depending on timber species and location. The char itself will last a minimum of 5-10 years without maintenance This is because we only use species that are recognised as meeting the New Zealand Natural durability standards (Minimum durability of 3) as our feed stock. By charring the timber we improve the durability of those timbers further.
Is your shou sugi ban made in New Zealand?
Yes it is! We are located in Rotorua and all charred timber cladding is produced from our factory there. In addition, all our feed stock is supplied from local New Zealand timber mills, and all timber profiles are produced in Edgecumbe, Putaruru, and Tauranga by local kiwi companies. Our timber oil is made by a local New Zealand manufacturer and tested to meet the harsh demands of our climate.
Can you offer Shou sugi ban in light colours other than black?
How is charred timber cladding maintenance free?
Aside from the beauty of shou sugi ban, its real purpose is function. It has been used for 100s of years in Japan due to its improved durability and stability attributes. The charred timber becomes more bug resistant, hydrophobic and is given UV protection.
What are the documents required for council consent when using Shou Sugi Ban?
When you are supplied timber from one of The Blackwood Project's Mills we supply you with their Producer Statement. This is a warranty document verifying the timber species and weatherboard profile as suitable for timber cladding and durable for New Zealand conditions.
Do you have an installation guide for Charred timber cladding?
Yes we can provide you with the appropriate weatherboard installation guide for your project. The installation of charred timber cladding does not actually require an installation guide, but the timber profile and the timber species are what the installation guide are needed for.
If I get the traditional full char Suyaki, will I have black char washing off the house every time it rains?
To begin with yes. The timber char will have some parts loosened from transportation and installation. After a short time, mainly denoted by the amount of rainfall, this will stop as the loose char is washed away. We apply a factory 4 side oil coat to strengthen the char and lock in the small particles.
Which timber is best for charred timber cladding in New Zealand?
We only char timber that is suitable for this process, if you have something different we are happy to test char this for you to see the results.
What weatherboard profiles are available as charred timber cladding?
In short, all of them. Shiplap is the most popular weatherboard profile in today's market followed closely by Bevelback and Rusticated. There are few profiles we do not char, please ask us about this.
I like the full traditional Japanese charred look but, is it possible to get this done as a light char?
Yes. However, a light charred board is only suitable for clears grade. (free of knots) The knots are a must higher density timber than the timber and will remain a light or almost uncharred in look. You also do not get the full protective characteristics of the shou sugi ban process when the char layer is less than 2mm.
How long does it take to process my charred timber cladding order?
The charring process time varies from 2-4 weeks.
Do you supply timber, or can I send you my timber for charring?
Yes we char timber supplied by our customers.
Can I get samples of your shou sugi ban finishes?
Yes. We have a shou sugi ban order form on the website in which you can receive samples of all the charred timber finishes.