Please keep in mind that Yakisugi (Shou Sugi Ban) is a unique and organic wood product.  Please find additional information on Yakisugi here.  While our experienced millwork produces the most consistent Yakisugi (Shou Sugi Ban) product available in the world, it is still somewhat foreign, sooty, and will weather over time.  Make sure you are completely comfortable with the product before specifying it for your project.  In the end what really matters is that you use a beautiful, sustainably harvested, and natural wood siding for your project and not chemically treated wood or cement board.