Before the construction of external wall insulation materials, it is necessary to clean the dust, sand, stones, dirt, etc. on the surface of the base roof, 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 temperature conditions for external wall insulation construction are that the ambient temperature at the construction site and the surface temperature of the base wall must not be lower than 5 ℃ during construction and within 24 hours after construction. Generally, construction is carried out in an environment of 5-35 ℃.

Proper construction of external wall insulation materials can prevent cracking under external forces, temperature deformation, and dry temperature deformation, effectively ensuring the stability and durability of the system. Due to the fact that the rigid polyurethane material itself does not contain water and has a low water absorption rate, it can effectively block the penetration of water and steam, 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.

EPS external wall insulation foam board is a thermoplastic material. Each cubic meter contains 30000 to 600000 independent closed bubbles. Therefore, the risk of cracking, deformation, or fracture of the main wall is greatly reduced, thereby extending the service life of the building's main structure. Combined with high-strength alkali resistant mesh fabric, it effectively solves the problem of cracking and water seepage caused by various reasons in traditional walls.

After extensive pasting, there is a high possibility of cracking in the external wall insulation material, and the pasting effect is not very good. Flexibility is also an important aspect of evaluating sheet metal. If the sheet metal has good flexibility, it can be bent several times during the testing process. It contains special graphite particles that can shine like mirrors, and contains infrared absorbers that can significantly improve thermal insulation performance, thereby reducing heat loss in the house, helping to improve energy efficiency and reduce carbon dioxide emissions.