Shou sugi ban, also known as Yakisugi, is a traditional Japanese technique for preserving wood. The process involves charring the surface of the wood using fire, cooling it down, and then brushing or washing off the excess charred material. This results in a unique, weather-resistant finish that has gained popularity in modern architecture and design. Shou sugi ban can be used for various applications, such as siding, flooring, and furniture, and can be applied to different types of wood, including cedar, cypress, and pine.