Fire protection grade of rubber and plastic insulation materials

After the 1970s, foreign countries have begun to pay attention to the application of rubber and plastic insulation materials in the construction industry, with the aim of minimizing energy consumption and further controlling environmental pollution and greenhouse effect. The fire protection grade of rubber and plastic insulation Materials are divided into four grades: A grade, B1 grade, B2 grade and B3 grade.According to the material composition, rubber and plastic insulation materials can be divided into:

According to the material composition, rubber and plastic insulation materials can be divided into:

1. Organic thermal insulation material

2. Inorganic thermal insulation materials

3, metal insulation materials

According to the shape of the material can be divided into:

1, loose insulation materials

2, plate insulation material

3, the overall thermal insulation material

The following is the classification of fire protection grades for rubber and plastic insulation materials:

Rubber and plastic insulation material's fire rating:

1, Class A

Non-combustible insulation materials,they are in accordance with the current "Classification Method for Combustion Performance of Building Materials" and are inorganic insulation materials.

2, B1 level

The flame retardant insulation material, they are determined according to the fire resistance of the material. In addition, the material division of different parts is also different! More common EPS/XPS insulation boards such as specially treated flame retardants.

3, B2 level

Combustible insulation materials, more commonly known as EPS expansion polystyrene foam insulation board and XPS extruded board, which is what we often say. This material has a low ignition point and releases a lot of harmful gases during the combustion process.

4, B3 level

Flammable insulation materials, which are mostly insulation materials based on polystyrene foam, are currently being eliminated as exterior insulation materials because they are extremely flammable.