Last September, the Chinese government promised the world at the United Nations General Assembly: "China will increase its national independent contribution, adopt more powerful policies and measures, strive to peak carbon dioxide emissions by 2030 and strive to achieve carbon neutralization by 2060." carbon peaking and carbon neutralization have become hot words at present.

At present, most of the thermal insulation and energy-saving materials commonly used for building exterior walls are ab vacuum insulation board. This new green building material has excellent thermal insulation performance, and its thermal conductivity is much lower than that of some thermal insulation materials commonly used in the market in previous years, such as rock wool, extruded board and so on.

AB vacuum insulation board is made of inorganic fiber as core material and high barrier composite film as gas barrier material through several processes such as vacuum pumping and packaging. Vacuum treatment, combined with the wrapping of high barrier composite film, the vacuum plate is kept in a vacuum state, so that the product has excellent thermal insulation performance.

According to the follow-up test results of the model project in Munich, Germany, the annual energy consumption of insulation board for building exterior wall insulation project is only 1 / 10 of the average energy consumption of Munich City. It can be seen that the contribution of insulation board to energy conservation and emission reduction is considerable.

AB vacuum thermal insulation board is a kind of external wall thermal insulation material made of inorganic materials. It not only has excellent thermal insulation performance, but also has class a fire protection performance. It can solve the two problems of energy saving and fire protection at the same time.

Here, Xiaobian combed some problems that some traditional enterprises engaged in external wall insulation will encounter in the construction of AB vacuum insulation board, and asked professional technicians to answer these problems.

Q: Can construction be carried out in rainy days?

A: No. Rain may wash the adhesive and reduce the bond strength. Pay attention to the weather conditions before construction. No construction shall be carried out in rainy weather. In case of sudden rainfall during construction, effective covering measures shall be taken for protection.

Q: Are there any requirements for temperature during construction?

A: Yes. During the construction of the whole insulation project and within 24 hours after completion, the ambient air temperature shall not be lower than 0 ° C, the average temperature shall not be lower than 5 ° C, and generally not higher than 35 ° C. If it is in cold and humid climate, the drying time shall be appropriately extended. Because the surface of the newly applied coating appears to be hardened and dry, it is often necessary to take protective measures to make it fully cured throughout the thickness.

Q. Can I throw or drop the AB vacuum insulation board when handling it?

A: : No. Its heat preservation effect is related to vacuum degree. If it is thrown, dropped or heavily pressed, it will encounter sharp objects or bend, resulting in the destruction of vacuum and affecting the thermal insulation effect. Therefore, such behavior shall be eliminated in the construction process.

Q: During the pasting process, it is found that the plate is larger. Can it be cut?

A: No. Because this will destroy the vacuum of the plate. To solve this problem, AB vacuum insulation board has 600 * 400, 400 * 300 and other small specifications. It is typeset and designed before being put on the wall. As long as it is designed and constructed, the above problems will not occur. Of course, materials shall not be stacked at will, otherwise errors may occur in the construction process.

Q: The wall is uneven. Can I paste it?

A: No. In the actual construction process, the base wall is not flat enough. At this time, the wall must be leveled before construction.

Finally, it should be emphasized that the construction team of AB vacuum insulation board must undergo professional training, master the construction process requirements and carry out construction in strict accordance with the specifications. Only in this way can AB vacuum insulation board achieve the expected effect.