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ThermoWood is a revolutionary product made from Finnish-grown European Redwood/Whitewood, treated at temperatures above 200°C. This heat treatment process transforms the timber, enhancing its stability, colour, and thermal insulation properties, making it ideal for external timber cladding. ThermoWood is an environmentally-friendly choice, offering a natural, durable solution for external joinery without the need for additional preservatives or coatings.