Fire Protection Standards for Container Houses

The core of fire protection standards for container houses lies in the selection of Class A fire-resistant panels, ensuring that the combustion performance of enclosure materials reaches a non-combustible level and meets fire safety acceptance requirements. Specific standards and key points are as follows:

1. Fire Rating Requirements

The fire rating of container houses must comply with national standards, with Class A fire-resistant panels as the core material, such as non-combustible materials like rock wool and magnesium oxide boards. For example, the folding container houses produced by Zeyu Housing have their wall panels filled with Class A fire-resistant rock wool, which does not soften or deform at 800°C and releases no toxic smoke; the floor and ceiling use Class A fire-resistant magnesium oxide boards with a fire resistance limit of ≥5 hours and a smoke toxicity level of AQ1 (non-toxic release). These materials effectively prevent the spread of fire and reduce fire risks.

2. Application Scenarios and Material Selection

1. Personnel Residence and Office Scenarios: For container houses and mobile dormitory buildings used for personnel residence and office purposes, Class A rock wool fire-resistant panels must be selected to ensure personnel safety and meet fire safety inspection requirements.
2. Temporary Buildings and Construction Site Temporary Structures: Packing-box units and steel structure integrated container houses should use Class A fire-resistant sandwich panels (such as rock wool and polyurethane flame-retardant materials) to ensure compliance with national standards like GB/T 8624-2012. If low-grade materials (such as B2-grade foam boards) are selected, fires can spread rapidly and produce toxic smoke, leading to failure in fire safety acceptance and even work stoppages for rectification.

3. Design and Structural Safety

1. Frame and Connection Methods: Fire protection performance must be designed in coordination with structural safety. For example, Zeyu container houses use hot-dip galvanized square tube frames, with full-welding processes to enhance longitudinal rigidity, capable of withstanding the load of 3-story stacking and extreme weather impacts; key components such as hinges and axles use stainless steel or hot-dip galvanized materials to avoid corrosion and jamming, ensuring fire protection stability during long-term use.
2. Sealing and Waterproof Design: Orange-peel pattern color-steel composite panels disperse rainwater through special embossing processes to avoid water accumulation and corrosion; the Class A rock wool filled between wall panels is machine-compressed and sealed to enhance compressive strength and prevent deformation and damage to the fire protection structure during transportation or stacking.

4. Fire Protection Regulations for Special Scenarios

For container houses used for specific purposes, special fire protection standards must be followed. For example, container-type lithium-ion battery energy storage stations must comply with the DB14/T 2490 standard, imposing higher requirements on fire separation of battery compartments and electrical equipment, as well as the configuration of fire extinguishing systems, to address special risks such as battery thermal runaway.