The thermal modification process uses heat to remove organic compounds from the wood’s cells. Therefore, it will not absorb water, expand, contract, or provide the nourishment that attracts insects or fungi. High heat produces a naturally durable wood that is permanently resistant to water, insects, and decay. And, because the wood is not absorbing chemicals as a preservative it is lighter in weight. Thermally modified wood is more dimensionally stable and is less likely to cup or warp. When thermally modified wood is properly maintained, it will not chip, rot, or warp over its 20 to 25 year lifetime. Importantly, the high gradual heat process changes the wood’s color and gives it a rich, aged appearance. Since thermally modified wood does not absorb or hold moisture as it would have prior to treatment, species that typically do not perform well in outdoor or wet environments can now be used in numerous other applications, such as decking, siding, or flooring. It can also be used in environments that are less stable, such as basements and bathrooms. Above all, thermally modified woods are dimensionally stable with incredible durability. It is a wonderful product for exterior use.