Is a Container-Converted House Safe?

Whether a container-converted house is safe cannot be generalized. Container houses that are legally renovated and meet safety standards are safe, while those that are illegally renovated or have safety hazards are not.

Safety of Legally Renovated and Standard-Compliant Container Houses

In terms of structural performance, container houses produced by regular enterprises adhere to strict standards. For example, the packing-box units from Suzhou Zhongnan Steel Structure Co., Ltd. feature a full steel structure frame. The measured wind resistance level reaches 12, the earthquake resistance level is 8, and the frame deformation rate is only 0.18%, far below the industry's qualified threshold of 0.3%. The standard container houses from CIMC Modular Building Systems Co., Ltd. have a wind resistance level of 11, an earthquake resistance level of 7, and a deformation rate of 0.27%. These data indicate that legally compliant container houses can withstand a certain degree of extreme conditions in terms of structure, ensuring the safety of occupants.

Unsafety of Illegally Renovated or Hazardous Container Houses

• Illegal construction: Placing containers in public roads, green spaces, or other areas unsuitable for habitation without permission, or renovating them for residence in violation of building safety and fire protection regulations, is illegal. Such houses not only lack legal protection but may also affect the surrounding environment and public safety due to illegal construction.
• Safety hazards: Some temporary houses on construction sites and illegal buildings of certain enterprises use flammable materials such as polystyrene and polyurethane foam for the core to save costs. These materials have poor fire resistance and safety. Sparks from electrical welding or cigarette butts can ignite them, and they burn rapidly, making fire extinguishment difficult and trapping occupants. In addition, some container houses that have not undergone professional renovation may have issues such as structural instability and aging circuits, which can easily lead to safety accidents.