However the process certainly has a long life span with japanese examples of shou sugi ban lasting for well over 50 years.
Shou sugi ban roof.
According to charred wood a supplier of shou.
The char serves a number of functions.
Shou sugi ban literally translates to burnt cedar board.
This creates a layer of carbon which protects the underlying wood from ultraviolet light attack by insects and water ingress.
Charred wood siding and fencing are the products of an ancient japanese technique that makes a unique beautiful and durable exterior wood product.
As burning treatments have become more popularized online there have been a proliferation of products both diy and retail labeled as shou sugi ban.
Shou sugi ban is the process of weatherproofing wood siding by charring the exterior face of the board.
While the technique originated in 18th century japan it has become popular in recent years as a modern architectural finish for facades of both residential and commercial designs.
Shou sugi ban is a mistaken mixture of chinese and japanese.
The word is not even recognized or understood in japan.
The outer layer of the wood that will be exposed to the elements is burnt.
For centuries the japanese perfected the art of charring wood in order to make it resistant to fire rot insects and uv effects from the sun.
The japanese invented this technique centuries ago calling it shou sugi ban or yakisugi.
Shou sugi ban has been used to protect external cladding in japan for centuries.
These are not blue or red just natural oak and some pine boards.
It seals and preserves the wood it makes it significantly more fire resistant and termites and bugs hate it.
It was first used by the japanese in the 18th century for cladding buildings.
Question about shou sugi ban and roof boards safe i have a playhouse i m finishing up and have a ton of boards pulled from pallets that are showing ht heat treated stamps or no stamps at all.