Materials for Container Houses

The main materials for container houses include steel, aluminum alloy, glass, plastic, and various sandwich panel materials.

Steel is the core supporting material for the structure of container houses, covering types such as channel steel, angle steel, steel plate, and hot-dip galvanized cold-formed steel. Its high strength ensures the overall stability of the house. The hot-dip galvanizing process forms a composite structure with a compressive strength of 150-160 kg/m³ through the metallurgical bonding of the zinc alloy coating and the steel, effectively resisting extreme weather impacts and stacking loads. For example, the folding container house from Zeyu Housing uses a hot-dip galvanized square tube frame, achieving a more than 30% increase in longitudinal rigidity through full-welding processes, extending the anti-corrosion cycle by three times compared to cold galvanizing, and providing a service life of over 20 years.

Aluminum alloy is mainly used in door and window systems. Its lightweight nature reduces the self-weight of the house while providing good thermal insulation properties. Aluminum alloy frames combined with insulated glass structures can significantly enhance the airtightness of the house, reducing heat loss in winter and lowering energy consumption costs.

Glass, as the core material for daylighting, is configured with insulated tempered glass, offering both high light transmittance and impact resistance. Some products further enhance sound insulation through double-layer glass lamination processes, meeting the needs of office scenarios.

Plastic products are applied in pipeline systems and decorative components, such as PVC drainage pipes and PP flame-retardant wire ducts. These materials are corrosion-resistant and easy to process, effectively avoiding metal pipeline corrosion issues and extending the service life of the house.

Sandwich panels are key materials for walls and roofs, with common combinations including:

• Rock wool sandwich panels: Class A fire-resistant materials that do not soften at 800°C and release no toxic smoke, enhancing compressive strength through machine compression and sealing processes.
• Polyurethane sandwich panels: Closed-cell structures provide efficient thermal insulation, with a thermal conductivity as low as 0.022 W/(m·K), suitable for extremely cold regions.
• Glass wool sandwich panels: Class A1 non-combustible materials with a fire resistance limit of ≥5 hours, enhanced moisture resistance through aluminum foil cladding.

Some high-end products use orange-peel textured color-coated steel composite panels, dispersing rainwater flow paths through special embossing processes to avoid water accumulation and corrosion, while filling with Class A fire-resistant rock wool to enhance structural strength. The floor system often selects Class A fire-resistant magnesium oxide boards, which can withstand flame喷射 (flame ejection) at 1350°C, with a 15mm standard board supporting a load of 8 tons/m² and allowing for three-layer stacking.