What to Do If Container House Rots

The treatment of a rotting container house should be tailored to the specific issue (mold, rust, or material corrosion). Effective solutions and prevention of further deterioration can be achieved through cleaning, protection, and regular maintenance.

Mold Treatment

Mold in container houses is primarily caused by excessive humidity or poor ventilation, requiring a three-pronged approach: cleaning, drying, and source identification.

• Cleaning: Use a cleaning agent containing bactericidal ingredients (such as chlorine or quaternary ammonium compounds) to thoroughly wipe the moldy areas. Wear protective gloves and a mask during operation to avoid direct contact with mold spores.
• Ventilation and Drying: Adjust indoor humidity by opening windows, installing exhaust fans, or using air conditioners. In humid environments, place dehumidifiers or use heating equipment to accelerate moisture evaporation, maintaining indoor relative humidity below 60%.
• Source Identification: Check for leaks in the roof, wall joints, and drainage pipes, and repair any vulnerabilities to prevent continuous water infiltration.

Rust Treatment

Rust is a common problem for metal containers and requires a two-step solution: rust removal and protection.

• Rust Removal Steps:
  1. Physical Removal: Use a wire brush or sandpaper to scrub the rust until the original metal color is exposed, ensuring the removal of oxide scale to prevent residue.
  2. Chemical Softening: Apply a phosphoric acid-based rust remover, wait 10-15 minutes for the rust layer to soften, then rinse with water and dry.
  3. Coating Protection: First, apply an anti-rust primer (such as epoxy zinc-rich paint), and after drying, cover with a weather-resistant topcoat (such as acrylic polyurethane paint) to form double protection.
• Rust Prevention Measures:
  • Regularly clean the surface of salt and dirt, especially in coastal or industrial pollution areas, requiring monthly cleaning.
  • Check the integrity of the coating and promptly touch up paint if scratches or peeling are found to prevent rust spread.
  • In high-humidity environments (such as tropical regions), it is recommended to use zinc-based anti-corrosion coatings or stainless steel containers.

Material Corrosion Prevention

Material corrosion in containers is often caused by acid rain, chemicals, or physical damage, requiring prevention through protection and repair.

• Rain and Sun Protection: For long-term outdoor use, regularly check if the surface coating (such as epoxy paint) is intact. In acid rain areas, additional silane-based hydrophobic coatings can be applied.
• Timely Repair: When scratches or dents are found, fill them with an epoxy repair agent and sand them smooth to prevent corrosion media from penetrating.
• Internal Management: Avoid storing strong acids or alkalis, and immediately clean up any residual liquids after use to prevent chemical reactions with the container metal.

Precautions: All operations should be carried out in a well-ventilated environment, wearing protective goggles, gloves, and other equipment. It is recommended to conduct a comprehensive inspection every six months, focusing on joints, corners, and other easily overlooked areas to extend the service life of the container house.