Disadvantages of Container Houses

The disadvantages of container houses are mainly reflected in aspects such as space, safety, comfort, and maintenance costs, as detailed below:

I. Space and Functional Limitations

Container houses have limited internal space, typically only 2.4 meters in width, 4-12 meters in length, and about 2.2 meters in height. For example, during the Nagoya Asian Games, athletes over two meters tall were unable to straighten their legs, and issues such as narrow beds and leaking sinks frequently occurred. Additionally, the compact spatial layout leads to poor ventilation and lighting, with some houses relying on artificial lighting and ventilation systems. Long-term residence can easily trigger a sense of oppression.

II. Prominent Safety Hazards

1. Fire Risk: Some container houses use flammable materials such as polyurethane and polystyrene as panel cores, with poor fire resistance. For instance, container house fires have occurred in Linping District, Hangzhou, and Anci District, Langfang, spreading rapidly and producing toxic smoke, resulting in casualties and property damage.
2. Structural Stability: Non-standard products use thin steel frames with a wind resistance rating of only 6-7, far below the national standard requirement of over 8. In coastal or strong wind areas, frame deformation, wall cracking, and even complete collapse can occur.
3. Electrical Safety: Aging wiring or unauthorized connections can easily cause short circuits. For example, in the Langfang fire incident, a faulty electrical switch ignited weeds, leading to the fire.

III. Insufficient Comfort

1. Poor Thermal Insulation: Metal materials have high thermal conductivity. Low-end products without thermal insulation materials can be extremely hot in summer and cold in winter, requiring additional installation of air conditioners or heating equipment.
2. Weak Sound Insulation: Metal walls transmit sound significantly, with external noise easily interfering with the interior. Improvements can be made by adding sound insulation cotton or double-layer walls.
3. Dampness and Odors: Insufficient sealing or drainage system defects can lead to rainwater leakage. Prolonged damp environments can easily breed mold and produce odors.

IV. High Maintenance Costs

1. Corrosion Protection: Steel is prone to rust when exposed to humid or high-salt environments for long periods, requiring regular application of anti-rust paint, with high maintenance frequency and costs.
2. Service Life Limitations: Although the design life can reach 25 years, actual use is significantly affected by the environment, typically requiring replacement or major repairs after 10-15 years.
3. Compliance Costs: Non-standard products that fail to pass fire and wind resistance certifications may face risks such as customs seizure and project suspension, with rework costs reaching 30%-50% of the initial purchase price.