What is the fire resistance rating of the wall panels?

In China, the fire resistance ratings of wall panels are typically classified into Grade A (non-combustible), Grade B1 (flame-retardant), Grade B2 (combustible), and Grade B3 (highly flammable).The specific grade depends on its fire resistance limit, that is, the time during which the building material can maintain its integrity and thermal insulation under the action of a fire source.

The fire resistance rating of wall panels is a crucial indicator for assessing their safety performance and plays a significant role in protecting building structures and personnel safety.So, what is the specific fire resistance rating of the wall panels?This mainly depends on its fire resistance limit.

I.Classification of Fire Resistance Grades for Wall Panels

The fire rating of wall panels is usually classified based on their fire resistance limit.In China, according to the GB standard, the fire resistance grades of wall panels are classified as A grade, B1 grade, B2 grade and B3 grade.Among them, Class A represents non flammability, Class B1 represents flame retardancy, Class B2 represents flammability, and Class B3 represents flammability.The performance of wall panels of different grades varies significantly in the event of a fire, so it is crucial to select a fire-resistant grade that meets safety requirements.

II.Testing method for fire rating

The testing of wall panel fire resistance grades usually includes fire resistance tests, smoke density tests, flame spread tests, etc.Among them, fire resistance test is the most critical testing item.The fire resistance level of the wall panel is determined by observing its fire resistance time under standard experimental conditions when exposed to a fire source.In addition, smoke density and flame propagation speed are also important indicators for evaluating the fire resistance performance of wall panels.

III.Measures to enhance the fire resistance level of wall panels

If the fire rating of the wall panel does not meet the expected standards, the following measures can be taken to improve it:Firstly, use fire-resistant additives, such as adding fire-retardant agents during the production process, to enhance the fire resistance limit of the wall panels.Secondly, increase the thickness of the wall panel. Generally speaking, the thicker the wall panel, the higher its fire rating.Finally, a fireproof coating is applied to the surface of the wall panels to form a fire-resistant layer, thereby slowing down the spread of the fire.

In short, understanding and selecting the fire rating of wall panels that meet safety requirements is crucial for ensuring building safety. When choosing wall panel materials, it is necessary to clearly define the usage scenario and the required fire resistance level, and select qualified products that have been certified by professional institutions. The wall panels supplied by Arris to ordinary customers all meet the B1 standard. If the customer has special requirements, it can be customized to reach Class A. At the same time, by taking reasonable fire prevention measures, the fire resistance of the wall panels can be further improved, providing strong protection for personnel and property safety.