In the field of construction, heat preservation and energy saving has always been the focus of attention. As a direct barrier between the building and the external environment, the external wall’s thermal insulation performance plays a decisive role in building energy consumption and indoor comfort. In recent years, the external wall ceramic insulation board has risen rapidly, and with many excellent characteristics, it has gradually become the star product in building insulation materials, providing a strong support for the unlocking of the new “temperature” degree of building.

First, the birth background of external wall ceramic insulation board
With the increasing importance of energy conservation and environmental protection worldwide, the construction industry is also facing great pressure to save energy and reduce emissions. Traditional thermal insulation materials, such as organic thermal insulation board, although the thermal insulation performance is acceptable, but the fire performance is poor, easy to age, there are greater security risks; Inorganic thermal insulation materials may have shortcomings in thermal insulation efficiency and construction convenience. In this context, the external wall ceramic insulation board came into being, it integrates the advantages of inorganic materials fire protection, weather resistance and advanced production technology, aiming to create a high-performance, long life and safe and reliable new insulation materials to meet the stringent requirements of modern buildings for insulation, fire prevention, durability and other aspects.

Second, the magic structure and principle of external wall ceramic insulation board
External wall ceramic insulation board is generally made of clay tailings, ceramic fragments, river silt and other main raw materials, and is made of foam by high temperature roasting to form a unique closed cell ceramic structure. Its interior is covered with a large number of small and independent pores, which act like a miniature thermal insulation “fortress”, greatly obstructing the conduction path of heat. When the outside heat tries to enter the room through the ceramic insulation board, in the process of passing through countless pores, the heat is constantly reflected and scattered, and the conduction efficiency is greatly reduced, so as to achieve efficient thermal insulation. At the same time, the high thermal resistance of the ceramic material itself further strengthens the thermal insulation performance of the thermal insulation board, making it difficult to lose indoor heat and difficult to invade outdoor heat, as if the building is covered with a solid layer of “thermal insulation armor”.

Third, the excellent performance of external wall ceramic insulation board
Fire and flame retardant, safe and carefree: The external wall ceramic insulation board made of calcination at 1200℃ or above has the highest combustion performance of A1 grade, and has the fire resistance of refractory brick in the power plant. In the event of a fire, it will not burn, nor will it release toxic and harmful gases, which can effectively prevent the spread of the fire, gain valuable time for personnel evacuation and fire rescue, significantly improve the fire safety level of the building, and is an ideal choice for external insulation systems and fire isolation belts with fire protection requirements.
High thermal insulation, energy-saving pioneer: its thermal conductivity is as low as 0.08-0.10W /(m · K), which is equivalent to thermal insulation mortar, and the thermal insulation performance is very good. In summer, it can effectively block the outdoor heat into the room and reduce the cooling load of air conditioning; In winter, it can prevent indoor heat leakage and reduce heating energy consumption. According to relevant statistics, the use of external wall ceramic insulation board building, compared with the use of insulation measures, can save a lot of energy consumption per year, help the building to achieve energy conservation and emission reduction goals, in line with the current green building development trend.
Weather resistance and aging resistance, long life: As a ceramic inorganic thermal insulation material, external wall ceramic thermal insulation board has excellent durability. Whether it is in the face of long-term exposure to sunlight, frequent erosion of rain, or harsh climatic conditions such as hot and cold upheaval, wind and rain, it can always maintain stable performance, no deformation, no aging, no cracking, and can be the same life as the building. This feature not only reduces the maintenance cost in the later period of the building, but also ensures the long-term stability of the thermal insulation performance of the building, providing a reliable guarantee for the whole life cycle of the building.
Low water absorption, stable and reliable: the water absorption of the external wall ceramic insulation board is extremely low, which makes it well bonded with cement mortar, decorative brick, etc., and the external decorative brick is safe and reliable, and is not restricted by the height of the building. Even in a humid environment, it will not cause safety problems such as reduced insulation performance or falling off due to water absorption, ensuring the overall stability and reliability of the external wall insulation system.
Green environmental protection, ecological friendly: the production of raw materials from a wide range of waste, such as clay tailings, river silt, etc., in the realization of comprehensive utilization of resources at the same time, reduce the exploitation of natural resources. The entire production process has low energy consumption, and the product itself is non-toxic and harmless, no radioactive substances are released, in line with the national green building materials standards, and inject green power into the sustainable development of the construction industry.

Fourth, the external wall ceramic insulation board of various application scenarios
Residential buildings: Whether it is urban high-rise residential buildings or rural self-built houses, external wall ceramic insulation panels can play a role. It can effectively adjust the indoor temperature, create a warm winter and cool summer comfortable living environment, reduce residents’ dependence on air conditioning, heating and other equipment, reduce energy consumption, and improve the quality of life. At the same time, its good fire performance escorts the safety of residents’ lives and property, making the home more at ease.
Commercial complex: shopping malls, office buildings and other commercial complexes are densely populated and have high requirements for fire safety and indoor environment comfort. External wall ceramic insulation board can not only meet the strict fire standards of these buildings, but also maintain the indoor temperature stability through efficient thermal insulation, reduce the operating time of the air conditioning system, reduce operating costs, and create a comfortable and energy-saving space environment for businesses and customers.
Public buildings: hospitals, schools, libraries and other public buildings are related to people’s well-being, and they have strict requirements for building quality and environmental performance. The green, safe and durable characteristics of external wall ceramic insulation board make it a high-quality choice for external wall insulation of public buildings. It can provide a healthy and comfortable working and learning environment for medical staff, teachers and students, without frequent maintenance, and ensure the long-term stable use of public buildings.

Five, external wall ceramic insulation board construction and installation points
Basic treatment: Before construction, it is necessary to thoroughly remove impurities such as floating ash, oil, release agent, hollow drum and weathering on the surface of the basic wall, and water the previous day to fully wet the basic wall, ensure that there is no liquid water residue on the surface of the wall before pasting, and clean the floating ash and loose sand on the surface of the insulation board to create a good foundation for subsequent construction.
Hanging layout: Hang the vertical reference control line and horizontal control baseline at the opening of the external door and window, expansion joint, decorative line, and outer wall Angle, so as to accurately control the verticality and flatness of the insulation board paste, and ensure that the insulation board is horizontal and vertical during the paste process. The main specification insulation board is preferred during construction, and the irregular place is cut on site.
Paste operation: Paste mortar is prepared according to the specified mix ratio, with the use, pay attention to sun protection and shelter, if the mortar storage time exceeds 2 hours, it can not be used again. The bonding method should be full bonding method, the bonding mortar compaction thickness is about 8mm, the four sides of the mortar must be full, the side should not paste mortar. When pasting, it should be divided from top to bottom along the horizontal direction, each row of plate joint (vertical joint) 1/2 board length, the local minimum joint is not less than 100mm, adjacent plates are closely aligned, plate seam spacing ≤2mm, the corner of the plate interlock. During the paste process, the insulation board can be compacted and gently rubbed with a rubber hammer to make the cement slurry and interface agent fully contact the surface of the insulation board, and timely adjust the height, flatness and position of the board. When pasting the second layer, it is necessary to fill the first layer of paste joints with cement mortar, and the extruded mortar is immediately scraped off.
Fixing measures: For systems designed with fixed parts, anchor parts and special pressure plates are used to fix, and the Angle distance between the fixed point and the plate is controlled within the range of 120-150mm. After seven days of attaching the thermal insulation board, install the fasteners. Drill holes using a hammer drill and anchor them to a base depth of no less than 70mm and a drilling depth of no less than 80mm. Install the fasteners after laying the steel wire mesh to ensure that the thermal insulation board is firmly fixed to the wall.
Plastering construction: The surface of the ceramic insulation board for plastering needs to be clean, and the plastering mortar must be compacted, with a thickness of no more than 20mm and a single layer thickness of no more than 12mm to prevent empty drums. During construction and within 7 days after construction, do a good job of shelter protection to avoid rain erosion and sun exposure, and pay attention to cover anti-freezing during winter construction. When the outdoor ambient temperature is higher than 37 ° C or lower than 0 ° C, no construction shall be carried out.
External wall ceramic insulation board with its excellent performance, a wide range of applications and scientific construction technology, for building energy conservation and safety to provide a comprehensive and efficient solution. With the continuous progress of technology and the gradual promotion of the market, it is believed that external wall ceramic insulation board will play a more important role in the future construction field, helping more buildings unlock the new “temperature” degree of comfort, energy saving and safety, and contributing to the development of green buildings and achieving the goal of carbon neutrality.