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How to do a good job in external wall insulation construction? We need to clean the dust, sand, stones, dirt, etc. on the surface of the base roof before construction, and rinse it with water to keep it clean and dry. If not cleaned, the gas isolation effect of the gas isolation layer will be affected. The construction temperature conditions for external wall insulation should be good. The ambient temperature at the construction site and the surface temperature of the base wall should not be lower than 5 ℃ within 24 hours after construction, and generally construction should be carried out in an environment of 5-35 ℃.

Proper construction of external wall insulation materials can start from the dry temperature deformation of the external wall. By doing this well, the external wall insulation is less likely to crack, effectively ensuring the stability and durability of the system. Due to the fact that the external wall insulation is made of rigid polyurethane material, which does not contain water and has a low water absorption rate, it can effectively block the penetration of water and steam into the external wall, keeping the wall in a good and stable insulation state. The thermal conductivity of the wall will not increase due to moisture absorption, and the wall will not leak water.

The external wall insulation foam board material generally contains 30000 to 600000 independent enclosed bubbles per cubic meter, which can greatly reduce the risk of cracking, deformation or fracture of the main wall, thereby extending the service life of the building's main structure. And it can be matched with high-strength alkali resistant mesh fabric, effectively solving the problem of cracking and water seepage caused by various reasons in traditional walls.

If there is a possibility of cracking in the external wall insulation material after construction and pasting, it may be due to inadequate pasting techniques. The flexibility of the external wall pasting technique is also an important factor in evaluating the quality of the board construction. If the flexibility of the board is good, the external wall construction will become simpler. Some exterior wall materials contain special graphite particles that can reflect hot light like mirrors, and contain infrared absorption that can greatly improve thermal insulation performance, thereby reducing heat loss in the house and helping to reduce carbon dioxide emissions from exterior wall insulation materials.