Rock wool, also known as mineral wool or stone wool, is a type of insulation made from natural rock or minerals. It is created by melting the raw materials and spinning them into fine fibers, which are then compressed into batts or loose-fill forms. This material is known for its excellent thermal insulation properties, helping to keep buildings warm in winter and cool in summer. In addition to thermal insulation, rock wool is also fire-resistant and sound-absorbent, making it a popular choice for both residential and commercial construction. It is often used in walls, roofs, and floors to improve energy efficiency and reduce noise levels.