Disadvantages of Container Houses

The disadvantages of container houses mainly focus on fire safety, living performance, and maintenance costs, as detailed below:

I. Prominent Fire Safety Hazards

1. Poor Fire Resistance and Susceptibility to Collapse
   The main structure of container houses is steel, and in a fire, the temperature can reach 800-1000℃, far exceeding the critical temperature (500℃) at which steel loses its stability. An ordinary container house may lose its load-bearing capacity and collapse within 10 minutes after a fire, hindering personnel evacuation and material rescue.
2. Flammable Core Materials
   Some low-cost products use flammable materials such as polyurethane and polystyrene to fill the core of the panels, which have low ignition points and poor flame retardancy. The honeycomb structure of the materials exacerbates combustion and can even lead to rapid spread due to electrical short circuits or open flames.
3. Narrow Passageways Affect Evacuation
   To maximize usable area, some container houses do not reserve standardized safety passageways or occupy evacuation spaces for construction, impeding personnel escape during a fire and potentially causing serious consequences.

II. Shortcomings in Living Performance

1. Poor Thermal Insulation
   Due to material differences, low-end products cannot guarantee thermal insulation performance, necessitating the selection of high-priced products (at double the cost) to meet requirements, thereby increasing usage costs.
2. Inadequate Sound Insulation
   Metal materials transmit sound effectively, resulting in poor sound insulation performance that requires additional soundproofing treatments to reduce noise interference.
3. Cramped Space and Limited Lighting and Ventilation
   The interior space of containers is relatively small, with poor lighting and ventilation conditions. Long-term residence can lead to a sense of oppression, affecting living comfort.

III. High Maintenance Costs

1. Poor Waterproofing at Joints
   When multiple containers are joined, the waterproofing performance at the joints is inadequate, requiring regular maintenance to prevent leakage.
2. Risk of Steel Corrosion
   Prolonged exposure to humid environments poses a risk of steel corrosion, necessitating anti-corrosion treatments to extend the service life.
3. High Renovation Costs
   The overall steel structure makes renovation more difficult than for ordinary houses, requiring special materials and techniques, further driving up costs.