Container Panel House Roof Making

The making of the roof of a container panel house involves key steps such as design planning, material selection, frame construction, and panel installation, while also paying attention to load-bearing capacity, drainage, sealing, and anti-corrosion treatment.

1. Design Planning

The roof shape (such as arched, triangular, or flat) should be determined based on the size, purpose, and environment of the container. The load-bearing capacity should be calculated to ensure resistance to wind and rain. For example, for an arched roof, the curvature should be designed according to the mechanical properties of steel or aluminum. For a triangular roof, a balance between ventilation and shading should be achieved through a combination of metal panels and louvers. Drainage design is crucial. Gutters or slopes should be planned to prevent water accumulation and avoid rusting or leakage.

2. Material Selection

1. Main structural materials: Hot-dip galvanized square tubes or steel are commonly used due to their high compressive strength (up to 150-160 kg/m³), and the galvanized layer can extend the anti-corrosion cycle to more than 20 years. For example, Zeyu Houses use hot-dip galvanized square tubes as frames to adapt to highly corrosive environments.
2. Roof panels: Options include orange-peel-patterned color-coated steel composite panels, FRP (fiberglass-reinforced plastic) panels, or sandwich panels. Color-coated steel panels disperse rainwater through embossing, and fire-resistant rock wool filling enhances compressive strength. FRP panels are lightweight and strong, resistant to ultraviolet rays, and suitable for lighting needs. Sandwich panels (such as EPS or PU) combine thermal insulation and waterproofing.
3. Auxiliary materials: Connectors (such as high-strength bolts), sealants (glass curtain wall sealant is recommended for long-lasting waterproofing), waterproof coatings, and fire-resistant materials (such as Class A rock wool) should be prepared.

3. Frame Construction

1. Positioning and fixing: Determine the frame position according to the design and connect hot-dip galvanized square tubes using full-welding techniques to ensure node strength. For example, the hinges of folding containers are fully welded and equipped with drainage holes to prevent water accumulation.
2. Stability reinforcement: Add diagonal braces or crossbars at frame nodes to enhance wind resistance. For multi-story containers, the frame spacing should be determined through calculations to avoid deformation.

4. Panel Installation and Sealing

1. Fixing methods: Choose installation methods according to the panel type. Color-coated steel panels should be fixed with self-tapping screws, and sealant should be applied to the gaps. FRP panels can be connected using rivets or special clamps.
2. Sealing treatment: Pay special attention to the ridge, gutters, and areas where pipes pass through walls. Use weather-resistant sealant for filling and replace it regularly (recommended every 5-7 years). For example, cultural and creative container houses use glass curtain wall sealant for waterproofing, which has a lifespan 5-6 times longer than ordinary sealant.

5. Anti-Corrosion and Maintenance

1. Rust prevention: After cutting or welding, the parts should be polished and then coated with epoxy primer and topcoat. In coastal areas, recoating should be done every 3-5 years.
2. Regular inspections: Inspect welds, corners, and eaves annually, clean fallen leaves to prevent corrosion, and avoid direct contact between the container and ground moisture.