Disadvantages of Shipping Container Houses

The disadvantages of shipping container houses mainly include inadequate fire resistance, significant differences in thermal insulation performance, poor sound insulation, risk of rust, limited space, and safety hazards.

1. Inadequate Fire Resistance
   Shipping container houses are primarily constructed with steel frames, and the strength of steel significantly decreases at high temperatures. When the temperature reaches 600℃, steel may melt or deform, compromising the overall stability of the building. Additionally, to reduce costs, some container houses use flammable materials such as polystyrene and polyurethane foam as sandwich layers. These materials burn rapidly, are highly toxic, and can easily cause collapse once the fire spreads, increasing the difficulty of firefighting and the risk to occupants.

2. Significant Differences in Thermal Insulation Performance
   Low-end container houses often have poor thermal insulation due to their simplistic materials, making them prone to being stuffy in summer and cold in winter. To improve performance, higher-quality materials or additional insulation layers are required, but this significantly increases costs, typically around twice that of low-end products.

3. Poor Sound Insulation
   The sound-conducting properties of metal result in poor sound insulation in container houses, allowing external noise to easily penetrate indoors and internal activities to potentially disturb the surrounding environment. To enhance sound insulation, additional treatments such as installing soundproofing materials or optimizing structural design are necessary.

4. Risk of Rust
   Steel structures are prone to rust when exposed to humid environments for extended periods, especially in coastal or high-humidity areas where rust issues are more prominent. If no rust prevention measures are taken (such as applying anti-rust paint or using weathering steel), steel corrosion can weaken structural strength and shorten the lifespan of the house.

5. Limited Space and Poor Ventilation and Lighting
   The internal space of container houses is relatively small and constrained by their original dimensions, limiting layout flexibility. Additionally, some modified houses have inadequate ventilation and lighting designs, which can lead to unpleasant odors due to poor air circulation or insufficient lighting, affecting living comfort.

6. Safety Hazards
   Some container houses have issues such as aging electrical wiring and illegal construction, which can easily lead to fires or electric shock accidents. For example, electrical wiring failures have caused multiple fires in container houses, resulting in property damage and even casualties.