Rock wool felt, also known as mineral wool felt, is a type of insulation material made from natural rock such as basalt or diabase. It is produced by melting the rock at high temperatures, then spinning it into fibers, and finally compressing the fibers into a felt-like material.
Rock wool felt has excellent insulating properties, making it popular for various applications including thermal insulation in buildings, industrial insulation, acoustic insulation, and fireproofing. It is commonly used in walls, roofs, ceilings, and HVAC systems to improve energy efficiency and provide soundproofing. One of the key advantages of rock wool felt is its resistance to fire, as it can withstand extremely high temperatures without burning or releasing toxic gases. Additionally, it is water repellent, which helps prevent moisture buildup and mold growth. Overall, rock wool felt is a versatile and effective insulation material that offers both thermal and acoustic benefits, along with fire resistance and durability.