Thermo oak, also known as thermally modified oak, is oak wood that has undergone a high-temperature heat treatment in the absence of oxygen and with the use of steam. This process alters the wood's cellular structure, significantly enhancing its durability, stability, and resistance to decay, pests, and moisture.

Key features and advantages Increased durability and stability: The heat treatment makes thermo oak resistant to decay, fungi, and insects. It also minimizes shrinkage and swelling, ensuring dimensional stability in varying weather conditions. This reduces the risk of warping, cracking, or splintering, making it a reliable choice for long-term use. Enhanced moisture resistance: The thermal modification process lowers the wood's moisture content, making it less absorbent and thus more resistant to rot and fungal attacks. This is crucial for applications where moisture exposure is a concern, such as bathrooms, saunas, and coastal areas. Chemical-free and sustainable: The process relies solely on heat and steam, eliminating the need for harmful chemicals commonly used in wood treatment. Thermo oak is also sourced from sustainably managed forests, contributing to a reduced environmental impact. Attractive aesthetics: The thermal treatment imparts a richer, deeper brown tone to the oak wood, often resembling exotic hardwoods. This enhances the natural grain, creating a distinct and elegant appearance. saraswati wood private limited notes that this darker color is more stable and lasts longer compared to untreated oak, which tends to fade or turn gray over time.