Insulation of Container Box Houses

The insulation of container box houses is primarily achieved through measures such as optimizing enclosure structure materials, improving jointing techniques, enhancing overall airtightness, and adopting broken-bridge lining structures.

1. Optimization of Enclosure Structure Materials:

   • Mainstream container houses use a steel frame structure paired with composite sandwich panels as the enclosure system. The density and thickness of the sandwich panels directly affect insulation performance, with products having lower thermal conductivity offering stronger insulation capabilities. For example, high-density insulation materials like rock wool or polyurethane are widely used for wall filling, forming a multi-layer protective system that effectively blocks heat transfer.

2. Improvement of Jointing Techniques:

   • Gaps at panel joints can create cold bridge effects, significantly reducing overall insulation performance. Excellent sealing techniques enhance insulation by minimizing the impact of these gaps. For instance, filling the space between the steel frame and interior wall panels with rigid polyurethane foam and installing rubber thermal insulation pads at frame connections can reduce heat exchange efficiency between the interior and exterior of the container by approximately 40%.

3. Enhancement of Overall Airtightness:

   • The fit between doors, windows, and frames, as well as the sealing at corners, are crucial for insulation performance. Optimizing the design of door and window seals and strengthening corner sealing can effectively reduce heat loss. For example, adopting a broken-bridge lining structure by installing a thermal insulation layer between the steel frame and interior wall panels further blocks heat conduction paths.

4. Application of Broken-Bridge Lining Structures:

   • To address the cold and hot bridge effects of metal container walls, a broken-bridge lining structure significantly reduces heat exchange efficiency by filling the space between the steel frame and interior wall panels with rigid polyurethane foam and installing rubber thermal insulation pads. This design can keep indoor temperatures 8 to 10 degrees Celsius higher than the outside in winter without heating, reducing reliance on heating equipment and energy consumption.

5. Construction of Multi-Layer Protective Systems:

   • Combining high-density insulation materials, moisture barriers, and ventilation layers forms a multi-layer protective system. In extremely cold environments, auxiliary heating equipment can maintain comfortable indoor temperatures; in hot environments, reflective coatings and ventilation designs effectively lower indoor temperatures. For example, the Apple Pod container homestay adapts to various climatic conditions by pre-installing doors, windows, and utility interfaces, and optimizing ventilation design.