What to Do If the Container House Is Too Hot

The issue of excessive heat in container houses can be addressed by selecting thermal insulation materials, increasing the thickness of the insulation layer, installing shading and ventilation facilities, and using reflective thermal insulation coatings.

1. Select materials with good thermal insulation performance
   The thermal insulation effect of container houses is closely related to material selection. For example, using new building materials with an outer layer of black steel plate and internal filling of polystyrene foam, or using rock wool as an insulation layer, can effectively block heat transfer. Rock wool has a low thermal conductivity at room temperature and is a commonly used insulation material in prefabricated houses. Additionally, polyurethane foam layers are also efficient insulation materials. If a polyurethane foam layer of more than 50mm is used in the middle layer, the thermal insulation efficiency can be significantly improved.

2. Increase the thickness of the insulation layer
   When constructing container houses, the thermal insulation performance can be enhanced by increasing the thickness of insulation materials such as foam. The higher the foam density and the thicker the layer, the stronger the thermal insulation effect. For example, adopting a double-layer structure or thickening the sandwich panel can further reduce heat conduction.

3. Install shading and ventilation facilities
   Installing adjustable shading roofs on the roof or setting up bottom ventilation slots can reduce direct sunlight exposure and promote air circulation, thereby lowering indoor temperatures. For large-area buildings such as steel structure factories, installing fans, negative pressure fans, or water curtain systems can accelerate heat dissipation and improve ventilation conditions.

4. Use reflective thermal insulation coatings
   Applying reflective thermal insulation coatings on the outer layer of container houses can enhance the roof's ability to reflect solar radiation, reducing heat absorption at the source. For example, covering the roof with high-reflectivity materials can lower the basic thermal load, especially in scenarios where the roof absorbs and transfers heat quickly.

5. Optimize window and door design
   Selecting window and door materials with good thermal insulation performance, such as double-glazed windows or thermal-break aluminum windows and doors, can reduce heat entry through gaps. Additionally, rationally designing the positions of windows and doors and utilizing natural ventilation can lower indoor temperatures.