Fire Protection Grade of External Wall Insulation Data
The fire protection grade of exterior wall thermal insulation materials should be as follows:
Class A is non-flammable data: WW inorganic active wall insulation materials, cement foam insulation board, vitrified bead insulation mortar, rock wool board, glass wool board, foamed ceramics, etc.
Class A non-combustible materials have the characteristics of low density, low thermal conductivity, high pressure capacity, convenient construction and economic durability. They are widely used as thermal insulation materials for heat pipes, thermal equipment and other industrial pipeline equipment and industrial construction, as well as thermal insulation, thermal insulation and sound absorption materials for industrial and civil construction envelopes. Because of its good thermal fluctuation, it is often used as the refractory maintenance cover material for steel structures.
Class B1 is flame retardant material, mostly inorganic material, adding a small amount of flame retardants, such as polyphenyl board, extrusion board, phenolic board, polyurethane board, etc.
Extinguishing function: refers to all physical and/or chemical changes that occur when data and/or products are extinguished by fire, i.e. fire response characteristics. The response characteristics of data to fire reflect the condition of the initial stage of fire. Secondly, it includes: non-flammability, ignition (ignition), flame spread and so on. Our country adopts ISO/TC92 standard for fire response experiment.
In the international rock wool board market, rock wool board, phenolic board, composite rock wool board and foam glass plate are products that are widely consumed in China. As China's research and development tasks on rock wool board, phenolic foam board and foam glass board have been progresses from time to time, the use of rock wool board in the old building innovation and construction projects is huge, so the small price difference will become a great capital.
Class B2 is flame retardant material, also known as flame retardant material, mostly inorganic heat preservation material, adding excessive flame retardant.
The property of flame retardant data or data disposed of to clearly postpone flame spread.
In summary, all the above-mentioned materials provided by Shandong Guangri Building Materials Co., Ltd. would like to know more about A1 class fire and thermal insulation materials. Welcome to pay attention to our website: . Thank you for your support!