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Best Shipping Container Home Insulation USA 2021

Shipping Container Home Insulation, We all want a house of our own where we can do things according to our wishes. Well, owning a house means spending some of our time and money on maintaining our paradise. Traditional houses ask for high maintenance every year. So, a huge amount of your salary goes on that. But in the case of a shipping container house, you do not need to spend loads on maintaining it but a small amount on insulating your container house.

Since shipping containers are made of aluminum and steel, they are at high risk of corrosion due to weather changes. Metal attracts a huge amount of heat. So, to prevent your house from turning into a fireplace, it is very important to insulate it with proper material. The materials that you use in your traditional house are no good for your shipping container house. 

Proper insulation and well-maintenance enable you to extend the life of your house. In this article, we will talk about some of the best ways and materials for your shipping container home insulation. 

20 Best Shipping Container Home Insulation Types | Learn How

1. Insulation via spray pumps

It is a kind of insulation in which we spray a liquid mixture made up of several materials on the walls and cracks of our shipping container home. Hardens and turns into a solid. It forms a barrier and prevents the transfer of heat. 

2. Open-Cell Spray Polyurethane Foam (OCSPF)

It has a low resistance value, due to which it cannot prevent the movement of air between the cells. So, it is a less desirable kind of foam insulation.

3. Closed-Cell Spray Polyurethane Foam (CCSPF)

It has the highest resistance value and forms a nice vapor retarder. It is the most recommended form of spray foam insulation.

4. Damp-Spray Cellulose Insulation

The spray materials are made up of recycle paper products. It fills in all the cavities on the walls without leaving any void. It adds adhesives to the cavity with the help of a special rig which is why it is called damp-spraying.

5. Cementitious Foam Insulation

It is cement-based thermal insulation with a resistance value similar to that of fiberglass. It is an eco-friendly, non-toxic, and non-flammable form of home insulation.

6. Strawbale and Hempcrete

These are cheap and unconventional materials used for the insulation of your houses. They are less suitable to most people due to their less resistant value. But these non-traditional insulating materials are the best for you if eco-friendly is your top priority. They are best suited for moderate climates.


It involves stacking rows of bales on a raised footing or foundation. A moisture barrier is inserted between the bales. Pins made of bamboo or timber can be used to tie the bales together on the walls. Due to their size, they can only work for the insulation of the exterior of the container.


Hempcrete is similar to concrete, but the strength of the material is relatively low. It is made out of hemp, so it is environmentally friendly and sustainable.

7. Blanket Insulation

In this type of insulation, fluffy and thick material is used to cover the walls of the container house like wool, fiberglass, etc. In winters, blankets protect us from extreme cold; similarly, blanket insulation protects our houses from extreme weather conditions. They are another cheap and eco-friendly way of protection mainly used in western countries.

8. Fiberglass Insulation

It is one of the most common and cheapest kinds of wall insulation. It is made up of recycling glass, and extremely heated sand turns into fibers. They are available in the form of blankets and sheets.

9. Slag wool, Mineral wool, and Rock wool Insulation

It is similar to fiberglass insulation. The only difference is that it is made up of minerals, slag, and by-products of metals. They have extremely high fire resistance, and it does not deteriorate over time.

10. Sheep wool Insulation

This type of insulation is from 100% natural sheep’s wool. It reduces a large amount of heat loss.

11. Cotton or Denim Insulation

It is another eco-friendly way of insulation. Post-industrial denim and cotton are used for insulation. It is a bit costlier but made of only recycled contents.

12. Expanded foam Insulation

It is the method of insulating your container home with a self-supporting pre-sized board and panel that have been manufactured offsite. It can easily be attached to your walls. They are DIY-friendly and comes in various forms. They have the highest resistance value.

13. Open Cell Polyurethane Foam Insulation (OC PU Foam)

It has a lower resistance value as compared to others. They are filled with air. So, they are not as dense as they look. They have a spongy texture and decrease surface tension.

14. Closed Cell Polyurethane Foam Insulation (CC PU Foam)

It has better resistance value and heat conduction properties. The key feature is that the microscopic cell of the foam is filled with gas other than air.

15. Extruded Polystyrene Foam Insulation (EPS)

It is a white foam that we usually see in our coffee cups. It is made of plastic beads that are packaged together into a closed-cell foam. Companies like InSoFast make their insulation kits using similar foam.

16. Polyisocyanurate (Polyiso)

They are more rigid than polyurethane, but all the other properties are similar.

17. Loose-fill Insulation

It involves filling the cavity of the walls of the shipping container with macroscopic insulating materials. They are less popular as compared to the other forms of insulation because of their vapor permeability. But they are also an eco-friendly method of insulation.

18. Cellulose Insulation

They are made up of recycled paper waste that is blown up by the machine. It is a cheap form of shipping container home insulation.

19. Loose-fill fiberglass Insulation

Its properties are similar to that of fiberglass, but it is less dense to be blown up by the machine.

20. Vermiculite Insulation and Perlite Insulation

In this process, superheated minerals are expanded and are then applied to the wall cavities.

Is there any other method for shipping container home insulation?

There are many thermal control ideas that one can use for insulating their shipping container home, such as

  • Covering your rooftop with grasses and plants making it look like a garden. Plants are not great insulators, but they can protect you from extreme solar radiation.
  • Involve a coating of some sort on your shipping container home. Use coatings that are design to reflect and emit radiation energy.
  • Design your house so that it minimizes the amount of energy needed to heat and cool it.

These are not the most effective methods, but if you are living in a place with moderate temperature. It probably will help you in some ways.

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