Source: Construction Standardization
First<System repair standards of building exterior insulation>issued in China.In recent years, the frequent quality accident of foreign insulation engineering, surface cracking common, external insulation shedding problem, has aroused widespread concern. These external insulation quality accident to live in the house owners brought a lot of confusion.Insiders know that the existing building exterior insulation system of the large number. However, because of the material, design and construction and other factors, there are some hollowing, building exterior insulation system cracking, leakage and loss of quality defects and damage. Although China's large-scale use of external thermal insulation system is not a long time, but in the actual use in the process of all kinds of quality problems still emerge.
The quality problem of exterior insulation will not only affect the architectural appearance, but also cause surface water seepage, have a greater impact on the daily lives of the residents, and local area walls form the thermal bridge, resulting in reduced insulation effect, decoration layer hollowing, shedding problems and even cause security risks of residents, caused no small impact on public security therefore, the development of the standard is to test the code for building exterior insulation system, assessment and repair actions, provide technical support for existing building exterior insulation system renovation.With this standard, in our district and wall of renovation, there can be based on the standard. The main purpose of this standard is to regulate the external thermal insulation system of building renovation project management, building exterior insulation quality defects and damage system, ensure system security and insulation.
Therefore, the scope of repair only meet the aesthetic requirements of the building exterior decoration level does not belong to this standard. The type of defects, building exterior insulation system defects, defects of different risks of different defects on the insulation system is also different, but for both the exterior insulation system, once have defects, regardless of their size, should take timely measures to repair, repair, otherwise, it will affect the appearance quality of the insulation system, heavy influence system life and safety.When the cracks in local system of building exterior insulation, and according to the pre assessment results, other areas of thermal insulation system does not have quality problems, only need to repair the defective parts; when building the whole piece of wall exists defects or quality problems, need to eradicate all the exterior insulation system, and re laying of exterior insulation system.