Design of Insulated Container Houses

The design of insulated container houses requires comprehensive consideration of structure, materials, sealing, and performance characteristics. Below are the key design points:

1. Structural Principle Insulated container houses adopt a 'metal-insulation layer-decorative layer' sandwich structure. The metal shell serves as the load-bearing and protective layer, with insulation materials (such as polyurethane foam, rock wool, or glass wool) filled in the middle, and a decorative layer on the inside. This composite structure controls indoor temperature fluctuations within ±5℃ by blocking heat conduction paths, while also providing sound insulation. For example, polyurethane foam has a closed-cell rate exceeding 95%, effectively reducing heat loss caused by air convection.

2. Insulation Material Selection

• Polyurethane Foam: With a thermal conductivity as low as 0.022W/(m·K), only 1/5 of that of traditional brick walls, its closed-cell structure results in extremely low water absorption, making it suitable for wall and roof insulation.
• Rock Wool Board: Made from basalt, with a melting point exceeding 1000℃ and a fire rating of Class A, it is commonly used in places with strict fire safety requirements (such as temporary offices in chemical parks).
• Extruded Polystyrene Board (XPS): With a compressive strength exceeding 500kPa and water absorption below 1%, it is suitable for ground insulation or high-load scenarios.

3. Sealing and Moisture-Proof Design

• Jointing Process: The panels are joined using interlocking or embedding structures, combined with silicone sealant strips, to form a continuous waterproof layer. For example, double sealant strips are used at the connection between the side and top panels of the container to withstand heavy rainfall.
• Thermal Bridge Treatment: Positions such as door and window openings and container joints are filled with expanding polyurethane to prevent direct exposure of metal, which could lead to heat conduction. The floor insulation layer usually consists of a 50mm thick XPS board, a moisture-proof film, and a PVC wear-resistant layer to prevent ground moisture penetration.

4. Performance Characteristics

• Rapid Deployment: Standardized modular design reduces the installation time of a single container to 4 hours. It can be infinitely expanded in area through bolt connections, meeting emergency accommodation needs.
• Weather Resistance: The metal shell, after hot-dip galvanizing treatment, can withstand winds of up to Level 8 and earthquakes of up to Level 7, with a service life exceeding 20 years. The internal circuitry adopts a hidden design and is equipped with a 30mA leakage protector to ensure electrical safety during the rainy season.
• Environmental and Economic Efficiency: The recycling rate of insulation materials exceeds 90%, and the carbon emissions over the entire lifecycle are 45% lower than those of concrete buildings. The long-term operating cost is only 1/3 of that of traditional temporary buildings.

5. Application Scenarios Insulated container houses are suitable for scenarios such as construction site offices, emergency medical stations, and commercial exhibitions. Their mobility allows them to be adjusted according to the progress of the project, such as serving as mobile laboratories in highway construction or temporary medical units in earthquake-stricken areas.