Container House Bathroom Renovation
When renovating a bathroom in a container house, it is essential to focus on core aspects such as structural reinforcement, drainage design, sealing treatment, pipeline separation, and ventilation and dehumidification. The specific steps are as follows:
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 renovation, 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 it with a waterproof membrane (such as SBS modified bitumen membrane) to form a double waterproof barrier. For higher durability, stainless steel drainage channels can be welded to the floor to guide water flow to preset drainage outlets, preventing water accumulation and corrosion.
Pre-embedding of Drainage System and Slope Control The interior space of a container is compact, and the drainage slope must be strictly controlled at no less than 2% to ensure rapid drainage of sewage. It is recommended to use PVC pipes with a diameter of over 50mm for drainage pipes to reduce the risk of blockage. During construction, holes should be pre-drilled in the side walls of the container (with a diameter slightly larger than the pipe diameter) to avoid damaging the structural strength by cutting later. The drainage outlet can be directed to the exterior of the container and treated collectively through a catch basin or septic tank, meeting environmental protection requirements.
Sealing of Joints between Wall Panels and the Floor Bathrooms are constantly exposed to a humid environment, making the joints prone to water leakage. Neutral silicone structural adhesive should be used to seal the corners and baseboards, and waterproof adhesive strips should be pressed in to enhance sealing. A 5-10cm high water stop ridge should be set at the corners to prevent ground water from seeping into the wall. If tiles are used for paving, ensure that the tile joints are filled tightly to prevent water penetration.
Separate Layout of Electrical Circuits and Water Supply and Drainage Pipes Electrical circuits and water pipes should be laid separately to avoid cross-interference. Electrical circuits should be threaded through PVC or metal pipes and laid along the top area of the container, away from water sources; water supply and drainage pipes should be laid along the bottom or side walls, maintaining a minimum distance of 30cm between the two. Splash-proof sockets and switches should be used, installed at a height of no less than 1.5m to prevent short circuits caused by water splashing.
Configuration of Ventilation and Dehumidification Systems Containers are highly airtight, so forced exhaust fans (with an exhaust volume of ≥100m³/h) and active dehumidifiers should be installed to maintain air circulation. Louvered vents can be reserved on the walls, or ventilation pipe interfaces can be pre-embedded for easy installation of a fresh air system later. If used in high-humidity areas, it is recommended to add humidity sensors to automatically adjust the operation of dehumidification equipment.
Precautions: Before renovation, check the original structure of the container to avoid using second-hand containers with defects such as roof depression or weld cracks. The renovated bathroom is suitable for scenarios such as oil fields, scenic spots, and urban public spaces, offering advantages such as mobility and easy installation. However, regular maintenance of the drainage system and sealing adhesive strips is required to extend the service life.
