{"id":6694,"date":"2024-12-30T18:31:52","date_gmt":"2024-12-30T18:31:52","guid":{"rendered":"https:\/\/universal-containers.com\/?p=6694"},"modified":"2024-12-30T18:33:17","modified_gmt":"2024-12-30T18:33:17","slug":"are-shipping-containers-waterproof-and-airtight","status":"publish","type":"post","link":"https:\/\/universal-containers.com\/news\/are-shipping-containers-waterproof-and-airtight\/","title":{"rendered":"Are Shipping Containers Waterproof and Airtight?"},"content":{"rendered":"\n

Shipping containers have long been known for their strength and durability when travelling overseas. However, with many different uses available for them today, it\u2019s important to understand how waterproof and airtight they are before you get started on a project. <\/p>\n\n\n\n

Whether you\u2019re using a container for storage, conversion, or transportation, ensuring your unit is waterproof and airtight is essential for protecting your goods and ensuring durability and longevity. <\/p>\n\n\n\n

What makes a shipping container waterproof?<\/strong><\/h2>\n\n\n\n

Since shipping containers were originally designed and used to transport goods in rough seas and harsh weather conditions, they have certain waterproof features. However, the level of waterproofness of a shipping container depends on a number of factors, including its design, condition, and how well it is maintained – or has been maintained if you\u2019re purchasing a used container.<\/p>\n\n\n\n

By regularly inspecting your container, carrying out proactive maintenance, and installing thoughtful modifications, you can ensure your shipping container remains watertight for longer, no matter what you decide to use it for.<\/p>\n\n\n\n

Design<\/strong><\/h3>\n\n\n\n

For the most part, shipping containers are all designed in the same way, using corrugated steel to create a robust structure. This steel offers durability and resistance to water ingress, but over time, it can become weakened, which is why regular maintenance is so important. <\/p>\n\n\n\n

Shipping containers are also often designed with rubber seals around the doors which are intended to keep water from entering. Ensuring these seals remain intact and in good condition is essential for keeping your container waterproof. Finally, the welding on corners and seams of your shipping container can influence how well the waterproofing of your container is – another key area to inspect during regular maintenance checks.<\/p>\n\n\n\n

Age and condition<\/strong><\/h3>\n\n\n\n

If you\u2019ve opted to buy a used shipping container<\/a>, its age and condition will be particularly important when establishing its level of waterproofing. Long-term exposure to moisture or dampness can lead to rust, especially on the roof and corners, which can create weak points for water to seep through. Dents, scratches, and damage during transportation can also impact the unit\u2019s waterproof nature, particularly if there is damage to the roof or near seams where it is easier for water to enter. <\/p>\n\n\n\n

Additionally, over time, the rubber gaskets around your shipping container doors can degrade, leading to easy entry for water. Checking for these issues before you buy your container is essential, as is consistently inspecting and maintaining the unit once it has been installed on your site to ensure any issues are rectified early.<\/p>\n\n\n\n

Environmental exposure<\/strong><\/h3>\n\n\n\n

The environment your container is placed in will also have an impact on its waterproofness. Shipping containers in humid or coastal areas are more likely to succumb to rust or corrosion because they are constantly exposed to moisture and salty air. Likewise, heavy rain or snow can take its toll on the waterproofing of a container. <\/p>\n\n\n\n

With most shipping containers having a flat roof, water pooling can also be a cause for concern. When this happens, there is an increased risk of leaks, particularly if the container already has some cracks or rust. Modifying your container to suit the environmental conditions is key to ensuring its waterproofness for longer.<\/p>\n\n\n\n

Maintenance and repairs<\/strong><\/h3>\n\n\n\n

Once your shipping container has been installed, carrying out regular maintenance and repairs is essential for ensuring it stays as waterproof as possible. Using protective coatings, such as marine-grade paint<\/a>, can decrease the chance of rust forming and seal small imperfections. Without carrying out regular maintenance and protective measures, your container will be at greater risk of water damage, potentially leading to exterior rust and condensation which can impact the interior. <\/p>\n\n\n\n

As part of these checks, you should look for rust, leaks, and any damage that could lead to a bigger problem or water ingress. Even minor issues should be rectified as these can quickly lead to bigger problems without you even noticing. It\u2019s also essential to ensure your repair works are carried out to a high standard, as poorly executed repairs can create new weak points and lead to further damage.<\/p>\n\n\n\t\t

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\r\n\t\t\t\t\t\tWondering how long a shipping container can actually last?\t\t\t\t\t<\/p>\r\n\t\t\t\t\t

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Shipping containers are built to be durable, but their lifespan can vary depending on usage, maintenance, and environment. Understanding these factors can help you make the most of your investment and keep your container functional for years to come.<\/p>\n\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t

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\r\n\t\t\t\t\t\tFind out all you need to know about their lifespan and learn how to keep your shipping container in great condition in our detailed guide.\t\t\t\t\t<\/p>\r\n\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\tRead guide\t\t\t\t\t\t<\/a>\r\n\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\n\n\n

Modifications<\/strong><\/h3>\n\n\n\n

While a major benefit of shipping containers is their adaptability and ability to modify them extensively, this can also be problematic if waterproofing measures are not taken seriously. When you add windows<\/a>, doors, or vents<\/a> to a shipping container, you could compromise the waterproof nature if you do not ensure they are sealed properly with weatherproof materials. We always advise speaking with a professional for these types of works to make sure they are carried out to a high standard. <\/p>\n\n\n\n

If you\u2019re planning to combine multiple containers<\/a> to create a larger structure, you will need to ensure the joints and seams have been thoroughly sealed to prevent water infiltration. Professional welders will be able to help you with this, ensuring your structure can stand the test of time and battle the elements.<\/p>\n\n\n\n

Type and history of the container<\/strong><\/h3>\n\n\n\n

No matter what you’re using a shipping container for, you’ll need to decide whether to buy a new or used unit<\/a>. On one hand, new containers are often in pristine condition and offer a higher level of waterproofing than used containers which could have been exposed to many years of wear and tear. However, they are typically more expensive, so it could be worth considering a used option and repairing it to ensure it is waterproof.<\/p>\n\n\n\n

In addition to the condition of the container, size and type also make a difference. High-cube containers have more internal volume due to their increased height, which means they may be more likely to experience roof sagging or water pooling if they are not reinforced correctly. <\/p>\n\n\n\n

It\u2019s also a good idea to do some research to find out what your container was used for in a previous life. This can help you establish how long it might last and how much work you need to complete to ensure its waterproofness. For example, containers used to transport corrosive or hazardous materials may have interior damage that could compromise the waterproofing.<\/p>\n\n\n\n

Waterproof vs watertight <\/strong><\/h2>\n\n\n\n

While the terms \u201cwaterproof\u201d and \u201cwatertight\u201d both seem to mean the same thing, they\u2019re actually quite different. The main difference between them is that \u201cwaterproof\u201d materials are completely impermeable to water, while \u201cwatertight\u201d materials prevent water from entering under specific conditions.<\/p>\n\n\n\n

In terms of shipping containers, a waterproof container is built to withstand extreme wet weather conditions and even water submersion. They offer a superior level of waterproofing. Watertight shipping containers, on the other hand, are designed to stop water from entering the unit in normal conditions, like rain or splashing waves at sea.<\/p>\n\n\n\n

Are shipping containers airtight?<\/strong><\/h2>\n\n\n\n

Shipping containers are not completely airtight, but they are still designed to offer security and weather resistance. It\u2019s important that shipping containers are not completely airtight so that air can move through the unit. Most standard shipping containers have small vents along the top rail that allow air to circulate, preventing condensation in the container<\/a> and other moisture problems. <\/p>\n\n\n\n

As shipping containers can be customised to create many different usable spaces, such as living quarters, workshops, or storage units, you can improve air circulation by installing ventilation systems that help manage the airflow while controlling air exchange between the inside and outside. <\/p>\n\n\n\n

The level of airtightness in a shipping container is not standardised and should be adjusted depending on the use of the unit. For example, you may need a specific level of airtightness to protect sensitive goods or store chemicals.<\/p>\n\n\n\n

Factors that influence how airtight a container is<\/strong><\/h3>\n\n\n\n

There are a number of factors that influence how airtight a shipping container is, such as the doors, vents, and unit condition. Before you start modifying or using your container, you should assess each of the factors to establish your unit\u2019s level of airtightness.<\/p>\n\n\n\n