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5 Insulation Types for Shipping Container Homes (With Pictures)
Pete Ortiz
Last updated:
Building a home from shipping containers offers an array of advantages, including cost savings and sustainability. However, it is important to consider insulation when building a container home to make it comfortable and energy efficient.
In this article, we will explore five types of insulation that are ideal for use in a shipping container home. We will discuss the benefits and drawbacks of each type to help you make the best decision for your project.
The 5 Insulation Types for Shipping Container Homes
1. Expanded Foam Insulation
Image Credit: sima, Shutterstock
R-value
3.6 to 8.0
Type
Prefab
DIY-friendly?
Yes
Expanded foam insulation is a popular choice for shipping container homes due to its affordability, ease of installation, and durability. It comes in prefabricated panels that can easily be attached to the interior walls of a shipping container.
Expanded foam has an R-value ranging from 3.6 to 8.0, making it one of the most effective insulators. Additionally, many types of expanded foam insulation are fire-resistant, giving you greater protection and peace of mind.
Pros
Affordable
Easy installation
Durable
High R-value
Fire and moisture resistant
Cons
May be susceptible to pests (i.e., rodents)
Can release toxic fumes if burned or overheated
2. Non-Traditional Insulation
R-value
2.0 to 3.7
Type
Bulk
DIY-friendly?
Yes
Non-traditional insulation is more commonly known as bulk insulation and can be made from hemp, wool, and other natural materials. It is typically sold in large bags that can be filled into the walls of a shipping container, providing an effective insulation barrier.
Non-traditional insulation has an R-value between 2.0 and 3.7, making it slightly less effective than expanded foam insulation but still suitable for many applications.
DIYers will find this type of insulation particularly attractive due to its low cost and easy installation.
Pros
Affordable
Easy installation
Cons
Low R-value
Susceptible to pests
3. Loose-Fill Insulation
Image Credit: Kurteev Gennadii, Shutterstock
R-value
3.2 to 3.8
Type
Blown/Fiberglass
DIY-friendly?
Yes
Loose-fill insulation is made from fiberglass or cellulose and can be “blown” into the walls of a shipping container. This insulation type is most often used to insulate attic spaces, but it can also be used in other applications, such as shipping container homes.
Loose-fill insulation has an R-value between 3.2 and 3.8, making it a good choice for those looking for an effective insulation solution without breaking the bank. One of the main benefits of this type of insulation is that it can easily fill corners and hard-to-reach spaces.
Loose-fill insulation is also easy to install and requires minimal equipment, making it a good choice for DIYers. However, because loose-fill insulation is not very dense, it may need to be replaced more often than other insulation types.
Pros
Ideal for hard-to-reach spaces
Easy to install
Affordable
Cons
Not as dense as other insulation types
May need to be replaced more often
4. Blanket Insulation
R-value
2.9 to 3.8
Type
Fiberglass, Rockwool, or Foam
DIY-friendly?
Yes
Made of materials like fiberglass, rockwool, or foam, blanket insulation is a type of insulation that comes in large, pre-cut rolls or blankets. This makes it easy to install and helpful for insulating walls, ceilings, and other surfaces quickly and effectively.
Blanket insulation typically has an R-value between 2.9 and 3.8, making it a good choice for those looking for a more affordable insulation solution. Additionally, it can be installed without the use of specialized tools and equipment, making it ideal for DIYers.
On the downside, blanket insulation is not as effective at filling hard-to-reach spaces or corners as loose-fill insulation. Additionally, it may need to be replaced more often than other insulation types due to its lower R-value.
Pros
Easy to install
Affordable
Cons
Not as effective at filling hard-to-reach spaces and corners
May need to be replaced more often
5. Spray Insulation
Image Credit: c12, Shutterstock
R-value
3.8
Type
Closed-cell Foam
DIY-friendly?
No
Spray insulation is a type of closed-cell foam that can be sprayed directly onto the walls, ceilings, and other surfaces of a shipping container. This type of insulation offers a high R-value (3.8) and is more effective at filling hard-to-reach spaces and corners.
However, spray insulation is also more expensive than other types of insulation and typically requires the use of specialized tools or equipment, making it unsuitable for DIYers.
What’s more, because spray insulation is a closed-cell foam, it can be difficult to remove if it needs to be replaced or repaired in the future.
Pros
High R-value
Effective at filling hard-to-reach spaces and corners
Cons
Expensive
Difficult to remove if replacement is needed
Requires specialized tools or equipment for installation
Tips for Proper Insulating
Shipping containers can provide a cost-effective, durable and aesthetically pleasing solution for creating a residential space. However, it is important to ensure that the home is properly insulated in order to make it comfortable year-round.
Here are some tips for proper insulation of shipping container homes:
Consider Your Climate
Choose the right insulation type based on your climate. Different climates require different types of insulation materials, so it is important to choose the right material for your region.
The types outlined in this guide are your best options for shipping container homes, but you should consider other insulation materials that may be better suited to your climate.
Image Credit: Hithesh S, Unsplash
Properly Install the Insulation
Once you’ve chosen your insulation material, make sure it is properly installed. Follow all instructions provided by the manufacturer and pay attention to details such as sealing any gaps or cracks between sections and ensuring that the insulation is completely filled.
Ensure Proper Ventilation
Good ventilation is essential for any home, regardless of whether it’s constructed from traditional materials or shipping containers.
Make sure that there are adequate air vents to ensure that fresh air can circulate throughout the building and stale air can escape. This will help keep your space comfortable and reduce the risk of condensation buildup.
Image Credit: Jed Owen, Unsplash
Keep an Eye on the Temperature
Once you’ve ensured that your home is properly insulated, keeping a close eye on temperature fluctuations throughout the year is important.
Ensure that any heating or cooling system you install can properly regulate temperatures in all areas of the building. If you notice any hot or cold spots, take steps to address them.
Following these tips ensures that your shipping container home is properly insulated and comfortable throughout the year. Make sure to keep up with regular maintenance to keep your insulation effective for years to come.
Consult an insulation expert
Find an insulation specialist in your area, and get free, no-commitment estimates for your project.
When it comes to choosing an insulation material for your shipping container home, the decision can be overwhelming. Each of these five insulation types offers a unique combination of benefits.
The best choice for you depends on the specific needs of your home and your budget. With careful consideration, you can make an informed decision that will provide the best possible solution for your shipping container.
Pete has been working in the trades since high school, where he first developed a passion for woodworking. Over the years, he has developed a keen interest in a wide variety of DIY projects around the home. Fascinated by all sort of tools, Pete loves reading and writing about all the latest gadgets and accessories that hit the market. His other interests include astronomy, hiking, and fishing.
As the founder of House Grail, Pete's primary goal is to help consumers make educated decisions about DIY projects at home, in the garage, and in the garden.