Shou sugi ban siding from Nakamoto Forestry is made from Japanese cypress that is intensely burned as a preservative treatment. Instead of kiln-drying the wood for several days at low heat, Nakamoto air-dries its siding planks slowly and uses a flash-burning heat treatment. The siding will weather and change color over time, though oil can be applied to maintain color. Shou sugi ban siding is available in three finishes: suyaki (pictured), gendai, and pika-pika. Sukayi features a thick layer of soot that remains intact and provides an alligator-like skin texture.