Metal carved panels are increasingly used in the decoration of exterior walls of buildings. In cold cities in the north, metal carved panels can play a good role in decoration and thermal insulation. With the continuous progress of technology, the quality and firmness of metal carved panels have improved. However, as long as it is a decorative material, cracking will inevitably occur during installation and construction, and it will undergo varying degrees of aging over time in daily life. Next, Zhongsheng Thermal Insulation Technology will introduce how to prevent metal carved boards from cracking and aging? Let's talk about these two issues together.
1、 How to Prevent Cracking of Metal Carved Boards
1. In order to avoid cracks, buildings should be completely insulated, including components such as awnings. The construction quality can be achieved through the quality and construction method of external metal carved panels.
2. By reducing the ratio of the linear expansion coefficient of the external thermal insulation material of the building structure to the linear expansion coefficient of materials such as the external decoration leveling mortar and the external decoration surface layer, a gradual change is generated between the metal carved boards layer by layer, and the stress is flexibly released to prevent cracking.
2、 How to prevent aging of metal carved boards?
1. The thermal insulation layer of high-rise buildings should have a fire resistance function, and should have the characteristics of preventing the spread of fire and the release of smoke or toxic gases during a fire
2. The strength and volume of the material should not be reduced too much, and the surface should not burst or collapse.
3. On the premise of having considerable adhesiveness, the integrated panel for external thermal insulation and decoration of high-rise buildings should meet the principle of gradual flexibility, and try to disperse and absorb seismic stress as much as possible to reduce the impact on metal carved panels.
4. Metal carving boards should be made of waterproof and moisture permeable external insulation materials to avoid damage to the wall during water or steam migration.
5. Under the action of negative wind pressure, the volume expansion of the air layer within the insulation layer causes damage to the insulation layer. The aging of metal carved panels can affect the use of building materials to a certain extent. When it reaches its useful life, we need to replace it to prevent the trouble of aging in our lives
6. Thermal expansion and cold contraction caused by changes in temperature difference can cause volume changes in non structural metal carved panels. Such metal carved panels have a shorter lifespan than normally used panels, and require regular maintenance in accordance with regulations.