Iron Sheet Container Renovated House
The renovation of iron sheet container houses requires comprehensive consideration of structural safety, thermal performance, functional zoning, and environmental requirements. Through scientific design and reasonable construction, low-cost and high-comfort living spaces can be achieved.
1. Structural Safety and Optimization
The traditional container's bottom frame has large spacing between longitudinal beams, which can lead to insufficient floor stiffness when used directly as a living space. During renovation, C-shaped steel purlins should be installed between the bottom beams to evenly distribute the load to the main beams, ensuring structural stability even when stacked up to three layers. For example, Baotou Xinxing Color Plate Steel Structure Manufacturing Co., Ltd. significantly improved the load-bearing capacity of the container body using this method. Additionally, the container surface should be shot-blasted for rust removal and coated with zinc-rich primer and polyurethane topcoat to form a protective system, extending the service life of the steel to over 15 years.
2. Thermal Performance Compensation
Metal container walls are prone to forming cold and hot bridges, necessitating the use of a broken-bridge lining structure: hard polyurethane foam should be filled between the steel frame and interior wall panels, and rubber thermal insulation pads should be installed at the connections of the studs to reduce heat exchange efficiency by approximately 40%. For example, the Baotou camp container house used this technology to raise the indoor winter temperature by 8-10 degrees Celsius compared to the outside, reducing heating energy consumption. The outer layer uses 0.6-millimeter-thick galvanized sheet to resist wind and sand, the middle layer is filled with 80-100-millimeter-thick rock wool as the main insulation layer, and the inner layer uses PVC-coated steel plate to reduce heat radiation, forming a multi-layer protective system.
3. Functional Zoning and Space Utilization
Fixed-size containers (e.g., 3 meters by 6 meters) require a functional overlay strategy: the kitchen and bathroom should be compressed to one end to form a wet area, using integrated bathroom technology for waterproof integration; the living and sleeping areas should achieve day-night functional switching through furniture variability, such as wall-mounted folding tables and drop-down beds. For example, in a renovation case in Xiaogan, Hubei, a rustic style combined with green plants, a projection screen, and an open kitchen created a warm living environment, while systematic planning of storage space avoided a reduction in actual usable area.
4. Environmental Protection and Recycling
The materials of container houses can be recycled throughout their entire lifecycle. Each standard 20-foot container consumes approximately 1.2 tons of steel, with carbon emissions being 1/2.3 of those of traditional concrete temporary houses. During relocation, the disassembly and assembly loss rate is controlled within 5%, and the entire structure can be hoisted to a new site, reducing construction waste. For example, the Baotou camp container house integrates a self-circulating sewage system, treating gray and black water through a sewage collection tank and gravity separator. The gray water is used for vegetation irrigation after sedimentation and filtration, while the black water is converted into liquid fertilizer through anaerobic fermentation, achieving a water self-sufficiency rate of over 70%.
