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The influence of the building structure of the extruded board: Different structures will have different insulation effects even if the insulation materials are the same. The insulation effect must be weaker for buildings with poor structural properties and unmodified exterior windows. The humidity and temperature of the building's environment will affect the insulation effect of the exterior wall materials.

A model room should be made first according to the design and specification requirements. After acceptance and approval by the relevant departments, a detailed technical disclosure should be written according to the requirements of the model room. The manufacturer of the exterior wall insulation component carefully reviews the remake drawings and related technical requirements. The quality of polystyrene foam insulation board is unstable because the material needs to be placed for a period of time before leaving the factory. After a period of maturity, it can be used. If it is not fully cured, the quality will not be guaranteed, resulting in shrinkage and cracking of the foam board.

The extruded board also has the characteristics of high thermal resistance, bottom line, and low expansion ratio. The closed-cell rate of its structure reaches more than 99%, forming a vacuum layer to avoid air flow and heat dissipation, ensuring the durability and stability of its insulation performance. The surface water absorption rate is low and the impermeability is good, which can effectively prevent the wall from getting damp and moldy and the wall from falling off; it is not affected by temperature. At high temperatures, the foam will not melt due to high temperatures, nor will it crack due to low temperatures. Freon is not used in the production process.

Extruded boards are used on roofs, and the roof has a large lighting area and a long lighting time. Among many insulation materials, extruded boards are more suitable. Extruded boards have relatively excellent thermal insulation properties and are used as external insulation layers in construction projects. Compared with the internal insulation layer used in previous construction projects, the external insulation layer effectively eliminates the occurrence of "deformation".