Container House Insulation Spraying

It is recommended to use polyurethane spraying technology for insulation spraying of container houses, which has the advantages of excellent thermal insulation performance, strong construction adaptability, and good waterproof sealing. The specific analysis is as follows:

Excellent Thermal Insulation Performance

Polyurethane spraying materials have a high closed-cell rate, which can effectively block the intrusion of water vapor and reduce heat and cold exchange losses. Its thermal conductivity can be as low as 0.037-0.038W/m·K, and compared with traditional panel splicing processes, the overall energy-saving effect is improved by 15%-20%. For example, the container houses in the Baotou camp reduce the heat exchange efficiency between the inside and outside of the boxes by about 40% through a broken-bridge lining structure (filling rigid polyurethane foam between the steel frame and the inner wall panel and adding rubber thermal insulation pads).

Strong Construction Adaptability

Polyurethane spraying can achieve seamless coverage of irregular surfaces, especially suitable for complex structures such as corners, curved surfaces, and steel frame connections of container houses. Its on-site foaming characteristics can completely cover the base material, avoid thermal bridge effects, and have stable construction efficiency, adapting to various engineering needs. For example, the polyurethane spraying process for cold storages is widely used in irregular structures and large-space storage scenarios, and can directly cover steel structures, concrete curved surfaces, and pipeline gaps.

Good Waterproof Sealing

The polyurethane spraying layer has an integrated structure, and the material is firmly bonded to the base material, forming a continuous waterproof layer. For example, the sprayed rigid polyurethane foam (RPUF) has a spraying thickness of about 1.0-1.5cm on horizontal roofs and about 0.5-1.0cm on exterior wall facades. The interlayer 'skin' structure has both waterproof functions, achieving integrated thermal insulation and waterproofing.

Material Selection Recommendations

It is recommended to give priority to compliant materials that meet the A1 non-combustible standard for fire resistance and have a sound absorption and noise reduction rate of ≥70%, and to evaluate the supplier's production standardization and service integrity. For example, Langfang Gaofu Thermal Insulation Materials Co., Ltd. can provide customized services integrating material production, scheme design, and professional construction. Its products have high batch stability, and the construction team is certified, ensuring better quality.