Sandwich Panel Container House Construction

The construction of sandwich panel container houses follows a process that combines factory prefabrication and on-site assembly, with core aspects including material selection, structural design, installation techniques, and scenario adaptation.

I. Material Selection and Structural Characteristics

Sandwich panel container houses feature a core structure of steel frame + sandwich panel walls. The steel frame, often made of galvanized steel or high-strength alloy steel, offers wind resistance, earthquake resistance, and corrosion resistance. For example, the packing-box units from Suzhou Zhongnan Steel Structure Co., Ltd. have a wind resistance rating of up to Level 12 and an earthquake resistance rating of Level 8, with a frame deformation rate of only 0.18%. The type of sandwich panel directly affects the house's performance:

• Rock wool sandwich panels: Excellent in fire resistance, sound insulation, and thermal insulation, suitable for long-term residence or scenarios with high fire safety requirements (such as construction site dormitories and emergency isolation points).
• EPS (polystyrene) sandwich panels: Lower cost but poorer fire resistance, gradually being phased out.
• Polyurethane sandwich panels: Outstanding thermal insulation performance, commonly used in low-temperature environments or commercial spaces (such as mobile shops and cafes).

In addition, the roof requires double treatment with a waterproof coating and an insulation layer. The floor uses moisture-proof wood-grain panels, and the doors and windows are made of aluminum alloy frames with insulated glass to enhance airtightness and energy efficiency.

II. Installation Techniques and Efficiency

Modular design is a core advantage of sandwich panel container houses, with an installation process divided into two stages:

1. Factory prefabrication: On the assembly line, the main structure, water and electricity pipelines, and interior decoration (such as bathrooms and cabinets) are integrated with a precision control of 1-2 millimeters. The daily production capacity can reach 50 modules.
2. On-site assembly: After arriving at the site, the steel frames are assembled by lifting, and the water and electricity systems are connected for immediate occupancy. For example, the quick-assembly boxes from Suzhou Zhongnan can be installed in just 2 hours per unit, and 10 standard dormitories can be completed in one day.

III. Scenario Adaptation and Customization

According to usage requirements, sandwich panel container houses can be classified into the following types:

• Engineering camps: Prioritize products with quick installation and flexible layouts (such as quick-assembly boxes), supporting on-demand assembly and combination.
• Government and enterprise temporary buildings: Require adaptation to specific functional layouts (such as offices and meeting rooms). It is recommended to use packing-box units that have completed interior pre-decoration before leaving the factory.
• Commercial spaces: Such as mobile shops and exhibition halls, which require attention to aesthetic appeal and spatial expansibility. Glass prefabricated containers or circular house designs can be adopted.
• Emergency shelters: Require rapid deployment and environmental friendliness. The folding container houses from Zhejiang Hangxing have a folded volume of only 1/4 of their expanded state, significantly reducing transportation costs.