Tantimber ThermoWood products are thermally modified with no chemical treatment. With reported properties including durability against decay, reduced equilibrium moisture content, reduced thermal conductivity, and reduced bending strength, the material is suitable for decking, siding, louvers, ceilings, soffits, pergolas, and decorative wall coverings, inside and out. Available wood species include ash, pine, poplar, and iroko; not all products are available in all species. gwoodpro.com