Dinghu Residential Container House

The following is information about residential container houses in Dinghu:

I. Local Production Enterprises

1. Zhaoqing Zhongzhong Container Co., Ltd. Located in Sukeng, Kengkou, Dinghu District, it was established in 2019. It mainly produces and sells container houses, provides steel structure engineering services, as well as leasing, installation, and maintenance services. The company has a registered capital of 500,000 RMB. Its taxpayer credit ratings for 2022 and 2024 are both A-level, but it has been involved in legal cases related to lease contract disputes.
2. Zhaoqing Guizu Container Co., Ltd. Established in 2014, it is located in the North Ninth District of Dinghu District. Its business scope covers the manufacture, sale, maintenance, and leasing of containers, as well as road freight transportation. The company has a registered capital of 1 million RMB and an employee size of 8 in 2024. It has had court announcements due to lease contract disputes.

II. Product Characteristics and Safety Hazards

1. Structural Advantages Container houses are environmentally friendly, energy-efficient, flexible in combination, and convenient for disassembly and transportation. They are commonly used in scenarios such as construction site dormitories, field operation houses, and temporary houses in tourist attractions.
2. Fire Risks
   • Material Hazards: To reduce costs, some products use flammable materials such as polystyrene and polyurethane foam as core materials, which have poor fire resistance and can be ignited by electrical welding sparks or cigarette butts.
   • Combustion Characteristics: The flammable materials melt, deform, and drip at 80°C, allowing the fire to spread rapidly and producing toxic smoke, increasing the difficulty of escape.
   • Rescue Challenges: The iron sheet-wrapped structure makes it difficult for water cannons to penetrate during firefighting, and the risk of collapse further hinders rescue efforts.

III. Safety and Compliance Recommendations

1. Material Selection: Prioritize the use of A-grade fire-resistant materials such as rock wool boards and fire-resistant cotton to ensure that the fire resistance limit meets construction site fire safety standards.
2. Usage Specifications:
   • Keep heat sources and fire sources away from container houses and maintain a safe distance for open-flame operations.
   • Install protective sleeves on wires and cables, and use metal galvanized boxes for socket and switch boxes, which should be surface-mounted.
   • Maintain a minimum safety distance of 6 meters between houses and equip them with simple firefighting equipment both inside and outside.

IV. Market Trends and Procurement Considerations The penetration rate of container houses in temporary construction scenarios on domestic construction sites has reached 72%, with significant low-carbon advantages (construction waste is only 1.2 kg/㎡, and carbon emissions are reduced by more than 80%). When procuring, it is necessary to focus on evaluating fast installation and delivery capabilities, safety and compliance performance, scenario adaptability, and full life-cycle costs.