Fire protection requirements for the thermal insulation and decoration integrated plate system of the external wall of civil buildings
Residential buildings should meet the following requirements: 1. For buildings with a height greater than or equal to 100m, the combustion performance of the insulation material should be A grade. 2. For buildings with a height greater than or equal to 60m and less than 100m, the combustion performance of the insulation material should not be lower than B2. When the B2 insulation material is used, each layer shall be provided with horizontal fire insulation. 3. For buildings with a height greater than or equal to 24m and less than 60m, the combustion performance of the insulation material should not be lower than B2. When B2 insulation material is used, horizontal fire barriers shall be provided for every three layers. Other civil buildings shall meet the following requirements: 1. For buildings with a height greater than or equal to 50m, the combustion performance of the insulation material should be A grade. 2. For buildings with a height greater than or equal to 24m and less than 50m, the performance of the insulation material after burning should not be lower than B1. Among them, when using B1 insulation material, every two layers should be provided with horizontal fire insulation. 3. For buildings with a height less than 24m, the combustion performance of the insulation material should not be lower than B2. Among them, when the B2 insulation material is used, each layer should be provided with a horizontal fire barrier. Protective layer Non-combustible or incombustible materials should be used as the fireproof layer, and the protective layer should completely cover the insulation material. The thickness of the protective layer of the first layer should not be less than 6mm, and the other layers should not be less than 3mm. Fire isolation tape When the fire isolation tape is required to be installed in accordance with this regulation, the fire isolation tape should be pasted with A1 (A) grade insulation material along the upper edge of the window to the entire area of the base wall, and the height should be consistent with the width of the thermal insulation decorative plate, and should not be less 300m, the vertical joint filling material should be A1 (A) homogeneous material. Fire isolation measures When the combustible insulation material is used for the thermal insulation decorative integrated board, the surface and sides of the thermal insulation material are wrapped with a glass fiber mesh cloth reinforced polymer mortar or other inorganic non-metallic material protective layer (the thickness of the protective layer is not less than 3mm). Properly improve its combustion performance level.
National Building Energy Conservation-Status of Exterior Wall Insulation
The number of existing buildings in my country is huge. According to incomplete statistics, there are about 40 billion square meters of external wall buildings in the country, of which cities and towns account for about 13 billion square meters. And it is still growing hundreds of millions every year. 99% of existing buildings are non-energy-saving buildings (that is, there is no external wall insulation). According to statistics from relevant departments, building energy consumption accounts for about 27.6% of the total energy consumption of the whole society, and it is even greater in cold regions, accounting for 40%. As the urbanization process accelerates and building energy consumption continues to increase, external wall insulation engineering has become one of the important methods for energy conservation and consumption reduction. There are three main types of insulation systems currently used in construction: exterior insulation, exterior insulation, and sandwich insulation. In the past, external wall internal insulation technology was prevalent, external wall external insulation was in the experimental stage, and there was basically no external wall sandwich insulation. In recent years, the external insulation system of the external wall has been welcomed by people, and it has gradually become the mainstream thermal insulation system, and the internal insulation of the external wall has been significantly reduced. The external insulation materials are also diverse, polystyrene foam board, silicate composite slurry, rock wool slag wool, glass wool, foam glass, polyurethane foam board, phenolic board, extruded plastic board, integrated board, metal Surface integrated board, etc.
Talk about the risks of "going out" of Chinese insulation board companies
With the steady progress of China's advocacy of the "Belt and Road" strategic plan, at the same time, in order to resolve the contradiction of domestic overcapacity and for the development of the enterprise itself, Chinese insulation board companies have gone abroad and have chosen new opportunities for insulation production lines in insulation material manufacturers around the world. However, the pace of "going out" of some enterprises is not stable due to various factors, and even has certain investment risks. Some market participants have recently conducted in-depth and extensive communication and exchanges with the partners and government departments of Central Asia, Africa, Southeast Asia and other countries on the construction of new projects due to the expansion and construction of international thermal insulation business. The following risks may be encountered during the process of “going out”: 1. The political stability of the investment destination country. Many countries have several parties, various religious organizations, anti-government armed forces, and contradictions of various domestic forces. The government's control of various forces is unsatisfactory, resulting in poor domestic political stability. There have been precedents for thermal insulation board companies that have gone abroad and were forced to suspend work or even withdraw due to domestic power struggles in Southeast Asia and Central Asia. Therefore, for insulation board companies planning to invest abroad, they must pay attention to, study, and analyze the political risks of the investing country. 2. The integrity of the government in the destination country. Whether it is Central Asia, Southeast Asia, or Africa, the government corruption in many countries is relatively serious. Visiting government officials and carrying out various approval procedures for the project must give gifts. Otherwise, it may bring unexpected confusion to the progress of the project. Will greatly increase the investment cost of the project. Therefore, when Chinese insulation board companies choose projects abroad, they must be aware of the integrity of the governments of the investing countries. 3. Labor quotas. In order to protect the employment opportunities of the local people, many countries in Central Asia and Africa have strict quota management for foreign workers. In order to ensure the construction quality and construction progress of the project, the insulation board construction project of the “going out” insulation board enterprises All are contracted by well-known enterprises in China, so a large number of Chinese laborers will enter the investment country during the project construction period, reminding “going out” enterprises to apply for labor quotas in advance according to the project construction progress, otherwise, it may be due to domestic The personnel cannot go abroad on time and delay the construction period, thereby increasing the investment cost of the project. Within one or two years after the completion of the project, local talents should be cultivated as soon as possible. In the future, the Chinese personnel should not exceed 15% of the total number of employees. 4. Tax risk. Tax management in many developing countries is chaotic, many trade activities (including service trade) have no invoices, and many insulation board companies that "go out" are often listed companies and joint-stock companies. Financial management must be transparent, fair and rigorous. Therefore, For the above trade behavior, it is best to purchase services through a qualified accounting firm or tax service agency in the host country to ensure investment compliance and avoid tax customs. 5. Selection of cooperation partners. In order to establish contact with the government department of the host country as soon as possible and obtain the support of the host country's government, in order to obtain investment preferences in the host country, some of the "going out" insulation board companies will refer and match the host country through intermediaries or intermediaries. Partners, but some intermediaries or intermediaries in order to obtain expensive intermediary fees, the economic strength of the partners they recommend and the relationship with government departments may not be as the intermediary said, if the partner is not properly selected, not only It is not possible to obtain preferential treatment from the host government, and it is likely that the project approval time will be greatly extended, and even the project approval may not be obtained, resulting in investment risks. Therefore, the “going out” insulation board companies must “keep their eyes open”, and do more research on the partners, and not be too hasty. 6. Mutual cooperation among domestic insulation companies. With the increasing intensity and speed of Chinese thermal insulation board companies' "going out", some projects in target countries will have several Chinese thermal i
Widely used in various industries of waterproof and thermal insulation rock wool board
Core Tip: The waterproof and thermal insulation rock wool board has a very wide range of applications. It also has thermal insulation and sound absorption effects on partition walls, suspended ceilings, interior and exterior walls, etc. The use of this material is still very extensive. With it, the inner and outer walls of these pipes will not be damaged, especially in winter. With it, it will reduce the degree of damage, and for some companies, the loss will be reduced a lot. . Waterproof and thermal insulation rock wool board is a material developed from a variety of natural ores and basalt as the main material. Now, this material has been widely used in various industries such as construction, metallurgy, shipbuilding, and power. application.