Preventing Water Leakage in Container Houses

Preventing water leakage in container houses requires comprehensive measures in design, construction, material selection, and post-maintenance:

I. Optimizing Waterproof Structures in the Design Phase

1. Proper Drainage Slope: The roof design should reserve an adequate slope (usually ≥5%) to ensure rapid rainwater drainage and prevent water accumulation and infiltration. For example, Zhongye Zhichuang optimizes the roof drainage slope to reduce water accumulation when customizing container houses.
2. Reinforcing Critical Nodes: Focus on treating easily leaking positions such as roof panel welds, container body joints, and areas around doors and windows. Employ multi-layer waterproofing techniques, such as using weather-resistant waterproof sealant in combination with waterproof membranes, to enhance resistance to rainwater erosion.
3. Protecting Hidden Works: For positions with fasteners like self-tapping screws and rivets, install waterproof gaskets and seal them to prevent gasket aging and damage due to thermal expansion and contraction or vibration.

II. Strictly Controlling Construction Techniques

1. Material Selection: Use qualified waterproof materials, such as high-density thermal insulation rock wool, thermal break insulation technology, and double-glazed windows and doors, to improve overall waterproof performance. Avoid using inferior sealants or waterproof membranes.
2. Standardized Techniques:
   • The overlap width of roof color steel tiles should meet standards, and replace aging rubber strips promptly.
   • Strengthen waterproof arc closures around skylights and ventilation equipment, with multi-layer sealing treatments.
   • Use flashing plates and eave edge sealing at the junctions of walls and window eaves to prevent lateral water infiltration.
3. Water Spray Testing: Conduct water spray tests before factory delivery to simulate heavy rain conditions and inspect waterproofing effects, ensuring no leakage points.

III. Post-Use and Maintenance

1. Regular Inspections: Inspect joints, sealants, and drainage systems every six months, focusing on checking for blockages in gutters and downspouts and promptly clearing debris.
2. Avoiding Human-Induced Damage: Prohibit walking on the roof or arbitrarily drilling holes to install equipment. If modifications are needed, they should be carried out by professionals to ensure the integrity of the waterproof layer.
3. Environmental Adaptability Maintenance: In southern rainy regions, strengthen the waterproofing techniques for roof edges and corners; in northern cold regions, check whether the moisture-proof film is firmly adhered to prevent condensation-induced leakage.

IV. Handling Special Scenarios

1. Mobile Container Houses: Avoid collisions during transportation or lifting that could cause structural deformation; otherwise, redo the waterproofing treatment.
2. Cultural and Tourism Applications: For container space capsule shops, ensure seamless sealing at the lap joints of panels and adapt to outdoor sun and rain conditions.