‌The materials that make the cold room board reach the Class A fireproof standard mainly include rock wool board and glass wool board. ‌

 

Rock wool board

 

The main raw materials of rock wool boards are natural minerals such as basalt, which are Class A non-combustible thermal insulation materials. It has the properties of thermal insulation, noise reduction, low thermal conductivity (0.03-0.047 W/m·K), and is also used in quick-freezing cold storage. Rock wool board not only has good fireproof performance but also can be used at high temperatures, and has good chemical stability and aging resistance. ‌

Glass wool board

 

Glass wool insulation material is made of glass fiber and is also a Class A insulation material. It has the characteristics of low thermal conductivity (0.034 W/m·K), waterproof, anti-corrosion, mildew-free, insect-free, and non-combustible. Glass wool has a high fireproof grade and can work normally in a wide temperature range (-100℃ to 400℃), suitable for quick-freezing cold storage and other environments.‌