As one of the many sound-absorbing materials, the excellent mineral wool sky sound-absorbing board is based on high-quality mineral wool, and its combustion performance can reach A2 grade non-combustibility. It has high sound absorption coefficient, thermal insulation, good flame retardancy, and smoothness. It is widely used in many public places that need sound absorption and noise reduction.
How is the combustion performance of decorative materials divided? General interior decoration materials are divided into A non-combustible, B1 non-combustible, B2 flammable, B3 flammable and other grades; according to the type of fire protection, it is divided into flammable, flame-retardant, flame-retardant and non-combustible materials. Grade A is a non-combustible building material that hardly burns, of which Grade A1 is non-combustible and does not start an open flame. Class A2 is non-combustible, but it must pass the measurement of smoke. Class B1 is a flame retardant building material, which has a good flame retardant effect. It is difficult to catch fire when encountering an open flame or under the action of high temperature, and it is not easy to spread quickly, and the combustion stops immediately when the fire source is removed. Class B2 is a combustible building material, and combustible materials have a certain flame retardant effect. When exposed to an open flame in the air or under the action of high temperature, it will immediately ignite and burn, which may easily lead to the spread of the fire. Class B3 is a flammable building material without any flame retardant effect, which is extremely flammable and has a great fire hazard.
Now that there are more and more large buildings and public places, the safety of building and decoration materials is becoming more and more important. Therefore, it is necessary to choose materials with appropriate fire rating in many occasions. The mineral wool sound-absorbing board itself does not contain asbestos, which is not harmful to the human body, and the waste mineral wool sound-absorbing board can also be recycled as a raw material for recycling. Therefore, the mineral wool sound-absorbing ceiling is a healthy and recyclable green building material. And no harmful gas will be produced in high temperature environment. It is very suitable for sound-absorbing decoration in hospitals, schools, shopping malls, large conference spaces, stadiums, etc.
