Interior Temperature of Container Houses

The interior temperature of container houses is influenced by structural materials, design optimization, and usage scenarios, resulting in a stable actual feel that can be enhanced through reasonable design for improved comfort. Here is a detailed analysis:

I. Structural Materials Determine Basic Thermal Insulation Performance
The thermal performance of container houses relies on three core structural layers: the outer anti-corrosion color-coated steel plate reduces heat absorption by reflecting sunlight; the middle polyurethane foam layer, over 50mm thick, blocks heat conduction with a heat transfer coefficient of ≤0.45W/(㎡·K), providing 1.8 times the insulation efficiency of traditional brick-and-mortar walls; the inner fire-resistant gypsum board and moisture-proof film work together to control humidity and stabilize temperature. This design causes the interior to warm up 22 minutes slower than the outdoors in summer and only drop 1.3℃ in temperature after 8 hours of closure in winter, creating a “delayed response” characteristic that avoids sudden temperature changes.

II. Design Optimization Can Significantly Improve Comfort

1. Material Upgrades: Using sandwich panels with aluminum foil reflective layers further enhances heat reflection capabilities. Combined with adjustable sunshades to reduce direct sunlight and ventilation slots at the bottom to promote air circulation, a “reflection-blocking-ventilation” three-dimensional temperature control system is formed. For example, after adopting such a design, Mogan Mountain Café maintained a comfortable temperature without air conditioning in the afternoon.
2. Shape Adjustments: The sunroom design features widened floor-to-ceiling windows and a sloped roof, ensuring ample natural light while avoiding harsh glare. During morning light diffusion, the interior is softly illuminated, and even drying items takes on a natural, gentle glow.
3. Thermal Mass Effect: In enclosed environments, the thermal mass of container materials (such as gypsum board) smooths out temperature fluctuations. After closing windows at night, the interior feels “gently wrapped,” providing a quiet and stable sense of comfort.

III. Safety Hazards Require Vigilance
Some low-cost container houses use flammable sandwich materials like polystyrene and polyurethane foam to cut costs, posing fire risks. These materials burn rapidly, emit toxic fumes, and the iron-sheet enclosure complicates firefighting efforts. Safety Recommendations: Prioritize A-grade fire-resistant materials such as rock wool boards and fireproof cotton, maintain a spacing of ≥6 meters between panel rooms, standardize electrical wiring, and equip with firefighting equipment.