top of page
levi917

How to Fix Moisture Accumulation Inside a Shipping Container

Moisture on a shipping container

Shipping containers are a popular choice for backyard storage due to their durability and security. However, one issue people may face is moisture accumulating inside the container. Left unchecked, this moisture can lead to mold, rust, and damage to the items stored inside. Fortunately, there are several effective ways to address this problem and keep your container dry and your belongings safe.

1. Identify the Source of Moisture

Before you can effectively solve the moisture problem, it's important to understand where it's coming from. Moisture can enter a shipping container in several ways:

  • Condensation: When the temperature outside the container drops, the metal walls can cool quickly, causing condensation to form on the inside.

  • Leaks: Check the container for any leaks in the roof, walls, or seals around the doors. Even small leaks can let in rainwater.

  • Humidity: High humidity in the surrounding environment can lead to moisture buildup inside the container.

2. Improve Ventilation

One of the simplest and most effective ways to reduce moisture is by improving ventilation. Proper ventilation helps circulate air, reducing the likelihood of condensation. Here are a few ways to do this:

  • Install Additional Vents: Adding additional vents to the container walls can significantly improve airflow. These vents allow moist air to escape and fresh air to enter, keeping the interior dry.

  • Use a Dehumidifier: If the container is in a particularly humid area, a dehumidifier can help remove excess moisture from the air inside.

  • Open the Doors Regularly: If your container is safe and secure, consider opening the doors periodically to let fresh air in and humid air out.

3. Use Moisture-Absorbing Materials

There are various moisture-absorbing products available that can help keep your container dry:

  • Desiccant Packs: These are small packets filled with materials like silica gel that absorb moisture from the air. Place several packs inside the container, especially in areas prone to moisture.

  • Charcoal Briquettes: Surprisingly, charcoal is an effective moisture absorber. Place a few briquettes in a container and leave them inside the shipping container to help reduce humidity.

  • Kitty Litter: A bucket of Kitty Litter is often used in damp spaces to absorb moisture. You can find bags of it pretty easily, which can be poured in a couple buckets and placed in the container to help keep the air dry.

4. Insulate the Shipping Container

Insulation is a good way to control the temperature inside the container, reducing the risk of condensation. By insulating the walls and roof, you can prevent the metal from cooling too quickly, which is what typically leads to condensation. Here’s how you can insulate your container:

  • Spray Foam Insulation: This is one of the most effective insulation methods. It creates a seal that helps regulate the interior temperature and prevents condensation.

  • Insulated Panels: These can be installed on the interior walls and roof of the container to provide a barrier between the metal and the air inside.

  • Reflective Insulation: Reflective insulation can be applied to the container's roof to deflect sunlight and reduce temperature fluctuations inside.

5. Check and Repair Seals

The seals around the doors and other openings in your container can wear out over time, allowing moisture to enter. Regularly check these seals for signs of wear or damage, and replace them if necessary. Using weatherproofing sealant can also help prevent leaks and keep the interior dry.

6. Elevate the Container

If your shipping container is placed directly on the ground, it might be more prone to moisture problems, especially if the ground is wet or prone to flooding. Elevating the container on blocks or a concrete foundation can help keep it dry by preventing water from seeping in from below.

7. Install a Moisture Barrier

For containers being used for long-term storage, installing a moisture barrier on the floor can be particularly effective. This barrier can be a plastic sheet or specialized moisture-resistant flooring that prevents water vapor from rising from the ground into the container.


Moisture accumulation in a backyard shipping container is a common issue, but with the right strategies, it’s a problem that can be effectively managed. By improving ventilation, using moisture absorbers, insulating the container, and regularly checking for leaks, you can keep your container dry and protect your belongings from damage. Taking these preventive measures will ensure that your shipping container remains a reliable and safe storage solution for years to come. Let the experts at GoatBin help you find the right container today!

27 views0 comments

Comments


bottom of page