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How to choose ceiling, wall and floor coatings that meet the national standard GB50222-2017 in special places

06 2018

GB50222-2017 Code for Fire Protection Design of Building Interior Decoration was announced on July 31, 2017, and was officially implemented on April 1, 2018. Implement in accordance with this regulation.

 

"GB50222-2017 Code for Fire Design of Building Interior Decoration" (hereinafter referred to as the code) includes: civil buildings and industrial buildings The central fire hydrant space, the evacuation passage and the safety exit hall, the ceiling and wall of the exit, the atrium, the horse corridor, and the stairs connecting the upper and lower floors inside the building. Windowless room, fire water pump room, power distribution room and other ancillary equipment spaces. Restaurant, scientific research laboratory, warehouse and storage room. Exhibition places and places specified in other regulations.

 

Special places are places under the key supervision of fire safety, which are related to the safety of life and property of the general public. The materials used are strictly regulated in the new specification.

 

Most of the ceilings, walls, and floors of special places must use Class A decoration materials. In the description of the specification provisions, 3 Classification and classification of decoration materials Table 1 “Example of Classification of Combustion Performance of Common Building Interior Decoration Materials” The materials of the parts are: Granite, marble, terrazzo, cement products, concrete products, plasterboard, lime products, clay products, glass,

 Ceramic tiles, mosaics, steel, aluminum-copper alloys, natural stone, metal composite boards, fiber gypsum boards, glass magnesium boards, silicon-calcium boards, etc.

 

The above materials are very different from the current situation that a large number of latex paints are used as decoration materials on the ceiling, wall and floor of the current building. Can the paint be used in special places? how to choose? How to use it with the base material to meet the requirements in the new specification?

 

The combustion levels of decoration parts and decoration materials in special places listed in the specification are listed as follows.

 

 

 

Whether the base material meets the A-level standard: in the description of the specification provisions, 3 Classification and classification of decoration materials Table 1 Examples of the classification of combustion performance of commonly used building interior decoration materials< ;b>Combustion grade A grade The materials used for each part are:Granite, marble, terrazzo, cement products, concrete products, gypsum boards, lime products, clay products, glass, tiles, mosaics, steel, Aluminum copper alloy, natural stone, metal composite board, fiber gypsum board, glass magnesium board, silicon calcium board, etc.

 

Article 3.0.6 states: the Used as a grade A decoration material. Applied on Class A substrates, the wet coating coverage ratio is less than 1.5KG/M², and the dry film thickness of the coating is not more than 1.0mmOrganic decoration coatings can be regarded as Class B1 The decoration materials are used.

 

That is, the use of inorganic coatings on these A-level substrates can meet the A-level fire protection requirements. The use of organic coatings with a wet coating coverage ratio of less than 1.5KG/M² and a dry film thickness of no more than 1.0mm can meet the B1 fire protection requirements.

 

, The ceiling and walls of the factory and warehouse are all made of organic paint, latex paint, real stone paint, texture paint or other types of paint. There is a very big difference. Inorganic coatings, which were not commonly used in the past, have occupied a particularly important position in the new national standard, and are the materials that must be used for most building interior decoration. Otherwise, it cannot pass the fire inspection and acceptance, and if a fire occurs, it must be strictly held accountable.

 

Shenzhen Simon United Building Materials Co., Ltd. focuses on the production, development, sales and service of STUCCO facing mortar. Among its six categories of productsdry powder finishing mortar, dry powder inorganic coating, water-based inorganic coating, modern rammed earth, fair-faced concrete finishing materials are all inorganic coatings, that is, the combustion grade A in the new specification, which meets the requirements In special places, civil buildings, warehouses and other places that require the use of Class A non-combustible materials. As a pioneer of dry powder inorganic coatings, Simon has truly achieved leadership in product technology and service.

 

The above-mentioned inorganic coatings of Simon United Building Materials Co., Ltd. not only meet the Class A non-combustible level , and there are a variety of different texture effects and colors, which can satisfy the pursuit of architects and designers for decorative effects while meeting the fire protection requirements of the new national standard.

 

 

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