As a commonly used fireproof material, the fireproof grade of rock wool board is a matter of great concern. Generally speaking, the fire rating of rock wool board can be divided into the following types:
1. Class A fireproof rock wool board.
Class A fireproof rock wool board refers to non-combustible materials, and its combustion performance meets the Class A standard stipulated by the state. This grade of rock wool board has very high fire resistance and is able to maintain its structural integrity at high temperatures, effectively stopping the spread of fire. In the field of construction, it is widely used in places such as exterior walls, interior partitions and suspended ceilings.
2. B1 grade fireproof rock wool board.
B1 grade fireproof rock wool board refers to the material that is difficult to burn, and its combustion performance meets the B1 standard stipulated by the state. This grade of rock wool board has a certain degree of flame retardancy, which can delay the spread of fire to a certain extent and reduce fire losses. In the field of construction, it is often used as a decoration material for the interior of buildings.
3. B2 grade fireproof rock wool board.
B2 grade fireproof rock wool board refers to combustible materials, and its combustion performance meets the B2 standard stipulated by the state. This level of rock wool board has relatively poor flame retardancy, but it is relatively cheap, so it is also widely used in some places with low fire protection requirements. In the construction field, it is often used as an insulation material for the exterior of buildings. Fire rating of rock wool board.
Fourth, other fire ratings.
In addition to the above three fire ratings, there are also some special fire ratings, such as C class, D class, etc. These grades of rock wool boards are less flame retardant and therefore less common in the market.
To sum up, the fire rating of rock wool board varies depending on its material and use. When choosing rock wool boards, it is necessary to choose the appropriate fire rating according to the specific use place and requirements to ensure safety and reliability. At the same time, during installation and use, it is also necessary to pay attention to comply with relevant specifications and safety measures to avoid accidents.