Wood could be preserved and protected by burning it
By Hicbd
Mon Dec 14 2020 12:47 pm
"Shou sugi ban is a Japanese term that means "charred cedar board." True to its name, shou sugi ban involves charring cedar planks, then burnishing the burnt wood with wire brushes and sandpaper before sealing it with natural oil. Also known as yakisugi, this ancient Japanese technique produces blackened, charred wood siding that is resistant to the elements, making shou sugi ban wood appropriate for both interior and exterior applications. Charred wood can serve as a fire retardant, since it lacks the oils needed to ignite a flame; this helps shou sugi ban surfaces last for many generations."
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