Floor Tiling for Living Container Houses

Living container houses can have floor tiles installed, but conditions such as structural reinforcement and waterproofing must be met, and an appropriate plan should be selected based on the usage scenario. Here are the specific considerations:

1. Structural Reinforcement is Fundamental
The thickness of the floor in ordinary containers is often insufficient, and floor tiles weigh about twenty to thirty kilograms per square meter. Direct installation can easily lead to floor collapse. A base layer must be laid first:

• It is recommended to use cement boards or wooden floors as the base layer. The thickness of the cement base layer should be ≥5 centimeters to distribute the weight of the tiles and reduce pressure on the container floor.
• If a wooden floor base layer is chosen, ensure that the wood is properly treated for moisture resistance to prevent long-term moisture-induced deformation.

2. Waterproofing Must Be Strict
Container seams are high-risk areas for water leakage. U-shaped aluminum channels must be installed and sealed with glass glue to prevent rainwater infiltration. When laying tiles, note the following:

• The width of tile joints should be controlled at 2-3 millimeters. Use epoxy resin grout (especially suitable for wet areas like kitchens and bathrooms), which has better water resistance and adhesion than ordinary grout.
• The ground base layer should have a waterproof coating, such as applying waterproof mortar or laying waterproof membranes, to form double protection.

3. Installation Methods: Wet Laying vs. Dry Laying

• Wet Laying Method: Suitable for scenarios requiring high ground flatness. Steps: Clean the ground → Wet it with water → Mix 325# cement and sand in a 1:3 ratio to make mortar (with a strength grade ≤200#) → Smooth it out and lay sample lines → Sprinkle cement powder to enhance adhesion → Lay the tiles.
• Dry Laying Method: Suitable for tight schedules or environments with high ground humidity. Steps: Wet the ground with water → Apply a 1:0.4-0.5 cement slurry → Lay a 1:3 dry and hard cement mortar leveling layer (the surface should be flat and hard) → Lay the tiles.
  Regardless of the method, wait for the base layer to dry completely before laying tiles to avoid hollowing caused by water evaporation.

4. Cost and Lifespan Must Be Balanced

• Advantages: Tiles come in a variety of colors, are aesthetically pleasing, and easy to clean; increasing the self-weight of the container can lower the center of gravity and enhance wind resistance; well-installed tiles can have a lifespan of 4-10 years.
• Disadvantages: The installation period is long (requiring at least two days for the cement to dry), and labor costs are high; quality depends on the skill of the tile layer, and improper installation can lead to hollowing and cracking.

5. Usage Scenarios Must Be Clarified

• Long-term use (>2 years): It is recommended to lay tiles, as the overall cost is lower and durability is stronger.
• Short-term use (≤2 years): Laying tiles is too costly; consider plastic flooring (low cost, short construction period, easy replacement).
• Severe container rust: Repair costs may exceed the cost of replacing a new container; in this case, it is not recommended to lay tiles, and rust treatment should be prioritized.

6. Comparison with Other Flooring Options

• Wooden/Bamboo Plywood: Low cost and fast construction period, but prone to moisture-induced deformation and not fire-resistant; only suitable for dry environments.
• Cement Board/Magnesium Oxide Board: Extremely low cost, fire-resistant, and fast construction period, but may cause halogenation and corrosion of the underlying structure; requires moisture-proof treatment when used.