Pioneer Millworks Accoya® Color — Grey Siding is FSC®-certified and cradle-to-cradle gold certified making it a top choice for sustainability and material health. The rot and moisture resistance of this acetylated pine is due to the unique vinegar treatment it is given directly after harvest. This makes it extremely durable, rivaling tropical hardwoods for longevity, and it comes with a 50-year residential above-ground warranty. After the acetylation process this nickel-gap siding are then immersed in a dye that penetrates the wood to the core with pigment, meaning that any cut ends maintain their color without needing any additional stains or finishes, and the siding surface does not require refinishing throughout its lifecycle.
