Installation of Shower Room in Container House

When installing a shower room in a container house, it is essential to focus on five core aspects: structural reinforcement, drainage design, waterproof sealing, separation of water and electricity, and ventilation and dehumidification. Here are the specific operational points:

1. Floor Reinforcement and Anti-Corrosion Treatment
The bottom of a container is made of steel structure, which is prone to rusting and perforation when exposed to moisture for an extended period, leading to a decrease in load-bearing capacity. Before modification, thoroughly remove rust from the floor, apply anti-rust paint to form a protective layer, then lay a 20mm thick cement mortar leveling layer to ensure a flat surface. Finally, cover with waterproof membrane (such as SBS modified bitumen membrane) to form a double waterproof barrier. For long-term use, stainless steel drainage channels can be welded to improve drainage efficiency and extend the structural lifespan.

2. Pre-Embedded Slope Design for Drainage System
The limited internal height of a container makes it prone to water accumulation if the drainage slope is insufficient, accelerating metal corrosion. The drainage pipe slope should be ≥2%, and PVC pipes with a diameter ≥50mm should be selected to ensure smooth drainage. During construction, holes should be pre-drilled in the sidewall of the container (with a diameter slightly larger than the pipe diameter) to avoid damaging the structural stability by cutting later. The drainage outlet should be directed outside the container and connected to the municipal drainage system or septic tank through a centralized pipeline.

3. Sealing Treatment for Joints Between Wall Panels and Floor
The connection between the wall and the floor is a high-risk area for water leakage, requiring multi-layer protection:

• Use neutral silicone structural adhesive to seal the corners and baseboards, and press in waterproof adhesive strips to enhance sealing performance;
• Set up a 5-10cm high water stop ridge at the corners to block water penetration;
• Apply waterproof coating (such as polyurethane waterproof coating) at the junction between the floor and the wall to form a continuous waterproof layer.

4. Separate Layout of Electrical Circuits and Water Supply and Drainage Pipes
The high-temperature and high-humidity environment of a shower room can easily lead to water and electricity safety hazards, requiring a strictly separate layout:

• Electrical circuits must be laid through PVC pipes or metal pipes and fixed to the top area of the container, away from water sources;
• Water supply and drainage pipes should be routed along the bottom or side walls, maintaining a distance of ≥30cm from the electrical circuits;
• Select splash-proof sockets (IPX4 or higher) and waterproof switches to prevent short circuits caused by water vapor intrusion.

5. Configuration of Ventilation and Dehumidification Systems
The strong airtightness of a container makes it prone to moisture accumulation, leading to structural rusting and mold growth. It is necessary to configure:

• Forced exhaust fans (air volume ≥300m³/h) and active dehumidifiers to maintain air circulation;
• Reserve louvered ventilation openings on the wall (with a grid size ≤5mm) to prevent the entry of insects and rodents;
• If the container has reserved ventilation pipe interfaces, a fresh air system can be installed to improve air quality.

Additional Suggestion: If you lack modification experience, you can directly purchase finished container houses with built-in bathrooms (such as products from Zhongyu Steel Structure, Guangdong Yongzhu, etc.). Their structures, water and electricity systems, and ventilation systems have been professionally designed, which can save construction costs and reduce safety risks.