The combustion performance of building materials is directly related to the fire safety of buildings, and many countries have established their own classification systems for the combustion performance of building materials. Depending on the use of buildings, locations and parts, the fire risk of the decorative materials used is different, and the requirements for the combustion performance of decorative materials are also different.
1. Building Materials
Wood, thermal insulation boards, glass, printed circuit board materials, extruded plastic boards, colored steel boards, polystyrene boards, components, fireproof boards, fireproof rock wool, fireproof doors, plastics, foam boards, etc.
2. Decorative Materials
Rubber floor coverings, calcium silicate sheets, carpets, artificial grass, bamboo and wood floor coverings, wall panels, wallpaper, sponges, wood products, computer equipment, plastics, decorative materials, inorganic coatings, artificial leather, leather, etc.
3.Scope Of Fire Classification Test
Fire resistance classification test, etc.
Fire Resistance Classification Test
Fire-resistance classification can be used to measure the fire-resistance rating scale of building materials and to determine the combustion performance of building materials. Materials and products can be classified into different European standard categories according to their reaction to fire. To understand this classification, it is necessary to consider general instantaneous combustion or flashover.
Class A1 - Non-Combustible Building Materials
Non-combustible and non-flammable. Examples: concrete, glass, steel, natural stone, brick and ceramic materials and products.
GRECHO'scoated fiberglass matsforceilings/gypsum board facers can achieve Class A1 fire rating.
Class A2 - Non-Combustible Building Materials
Almost incombustible, very low flammability and not suddenly igniting, e.g. materials and products similar to those in Euro A1, but with a low percentage of organic components.
Class B1 Fire-Retardant Building Materials
Combustion-retardant materials have a good flame-retardant effect, making it difficult for a fire to break out in the air in the case of an open flame or at high temperatures, not easy for it to spread rapidly and, when the source of the fire is far away, combustion ceases immediately, such as plasterboard and certain flame-retardant treated woods.
Class B2 - Combustible Building Materials
Combustible materials have a certain fire-retardant effect and ignite immediately when exposed to an open flame in the air or to high temperatures, leading easily to the spread of fire, such as wooden columns, wooden frames, wooden beams, wooden staircases, phenolic foams or plasterboard with thickened surface coatings.
Class B3 - Flammable Building Materials
Non-flammable, extremely flammable, causing flashover in ten minutes, including wood materials and products that have not been fireproofed. Depending on thickness and density, the reaction of the material varies considerably.
The above is only a simple way to identify fire ratings. It is also necessary to carry out more accurate fire tests to judge the fire rating.
Post time: Jan-30-2024
