Shipping Container Vents

Oct 21, 2017| Container Vents| Home
Shipping Container vens

Shipping Container vents


Shipping container vents are usually installed at manufactuering time to help with air flow inside the container mainly to solve the problem of moisture and condensation.

Besides managing the container air flow, shipping container vents designed to stop insects from getting inside the container too.

These basic shipping container vents are small in size, about two inches wide by about six inches tall, with bunch of holes at the bottom to allow air in and out while stopping water from getting in.

The number of shipping container vents installed at build time is different based on the size of the container. The basic was two vents on each container at opposite sides no matter what the length or the height of the container.

Now days we start seeing two vents at each side for a total of four vents on the standard 10 and 20 foot shipping container. We actually saw some 40 foot shipping containers with a total of 8 vents, 4 at each side.




shipping container basic vent


shipping container vent

shipping container large vents

Shipping Container Louvered vents.


While basic shipping container vents are good enough for providing some protection for cargo while the container is moving around the world.

They are not good at all if the shipping container is to be used for anything involve storage.

  1. Home use storage container.
  2. Inventory storage.
  3. Custom built container shop.

Without proper ventilation of the shipping container. The container will build moisture and condensation which in turn will case all kind of problems.

One solution is a bigger louvered vent which allows better air flow. These shipping container louvered vents are about 12 inches by 12 inches. Which is the most common size used on shipping containers.

Shipping container louvered vents are usually installed in pairs, On opposite sides. One vent on the top left panel and the other on the top right panel on opposite corners.

Some customers will like the vents installed on the same side. One louvered vent on the top corner and the second vent on the opposite bottom corner. Which provide a better air circulation. Cold air enter from the bottom vent and worm air exits from the top vent.

12 X 12 Inches louvered shipping container vents are the most commonly used size but not the only size available. Check out the image to the left for a 4 feet by 4 feet louvered vent.



How to install shipping container louvered vent


As the image to the right shows. The louvered vent we order comes as a kit. The vent is already installed inside a 2X2 inches steel tube, Some times we get them inside a 2X3 inches tubes.

Installing the shipping container vent

  1. Line up the vent assembly where you want it on the outside of the container.
  2. Trace around the steel tubing.
  3. Cut the vent opening using a grinder with a cut off wheel.
  4. Check to see if the vent assembly will fit properly in the opening.
  5. Grind off the paint around the vent opening.
  6. Insert the vent in the opening and line it up flush with the wall panel.
  7. Weld the vent frame all the way around.
  8. Wire wheel and seal from inside ( Caulking ).
  9. Mask the aluminum vent. Prime & Paint.

The average time to install this type of shipping container vents is about two hours. If you end up purchasing a vent without the frame. Do yourself a big favor and build a frame for it.

Installing the louvered vent without the steel frame is a little faster and cheaper. But it will never look as good as in a frame and in the long run you will end up with water seeping inside. And your outside sealant will fail.

Customers who order shipping container rollup doors usually asked for louverd vents to be installed too.

Images of the installation prosses can be found here.




Shipping container vents kit

Shipping container vent opening



shipping container whirlybird vent

shipping container whirlybird vent inside

Shipping Container Whirlybird Vents


Even though whirlybird vents were not designed for shipping containers. Just like louvered vents they can be installed with ease, they help a lot in fighting condensation and moisture.

Worm air by nature moves up and cold air goes down. When the worm air from inside the container hits the turbine vents it causes it to start spinning which in turn start to generate vacuum underneath the vent which allow for more air to get exhausted form the container.

This circulation of air is what's needed to keep the shipping container dry without moisture or condensation.

Just like the louvered vent whirlybird or "Turbine Vents" comes with a flat mounting flange perfect for mountining on a flat surface. Unfortunately shipping containers roof are corrugated.

So how to mount a flat flange on a corrugated surface?

After lining up the vent where you want it and cut off the opening.

  1. You can start by fastening the vent flange to the high part of the corrugation and pound down the flange while working your way around. It's a thin aluminum flange and can be shaped to the corrugation with little pounding. This will be the fastest way to install a shipping container whirlybird vent. But will need a lot of sealant.
  2. You can purchase a whirlybird vent kit that comes with a fiberglass base that fits the corrugation. Which is not a bad way of doing it, but the kit is a little on the expensive side. And the roof have to be as good as it can be or the fiberglass base will not fit properly.
  3. The image to the left is the way we do it. We take the time to build a steel frame for the whirlybird vent. We cut a square opening in the roof, drop the frame in the openning, weld all the way around, clean prime and paint. Then fasten the vent flang to the flat surface of the frame. This way takes a little more time but you don't have to worry about the corrugation, or the sealant, and it looks a million time better.

Customers who order shipping container man door usually asked for whirlybird vents to be installed too.

Seattle Tacoma Shipping Containers modifications

Seattle tacoma shipping containers are specialized in shipping and storage container vents

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