The rock wool sandwich board has high fire rating.
Rock wool sandwich board is a sandwich board made of rock wool. Rock wool sandwich panel gives full play to the unique performance of rock wool core material and has remarkable effects in fire prevention, thermal insulation, sound absorption and sound insulation.
PU sandwich panel has beautiful appearance and good overall effect. It integrates load-bearing, thermal insulation, fire prevention and waterproof, and does not need secondary decoration. It has the advantages of fast and convenient installation, short construction cycle, good comprehensive benefits and good cost performance. It is a widely used energy-saving building envelope material. It is also a new energy-saving panel advocated and promoted by the Ministry of construction.