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5 Best Bug Out Vehicle Insulators

Bug Out Vehicle Insulators

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In the event, the unthinkable happens, and one day you have to rely on living in your bug out vehicle for the long-term, proper insulation will be critical to survival. Insulation comes in many different types of materials and can be used to line your vehicle’s interior. In this article, we are going to explore the best bug out vehicle insulators and discuss why they could be a good option to help maintain comfortable cabin temperatures.

Here are the 5 best bug out vehicle insulators:

  1. Polyurethane Foam
  2. Ecowool / Hemp / Fleece
  3. Glass Fiber
  4. Polystyrene
  5. Kingspan

Why Insulate Your Bug Out Vehicle?

Glass fiber as an option for bug out vehicle insulators


Like with housing, insulation is necessary to help keep the cabin of your vehicle both warm during winter and cool during summer. In other words, it helps maintain more comfortable cabin temperatures inside, while protecting against extreme heat and cold from the outside. If you are also looking to store goods inside your vehicle, insulation is also necessary to keep perishables from spoiling and protecting against moisture and humidity.

Common Materials Used To Insulate A Bug Out Vehicle

Many materials can serve as viable forms of insulation for survival vehicles. We have come up with five great options for Car Preppers to consider:

1) Polyurethane Foam

Polyurethane foam is considered by some to be the end-all-be-all of insulators. This foam comes in the form of a spray, and there are products or services that you can invest in, to cover every area of your car’s interior. Polyurethane foam is an effective bug out vehicle insulator due to how it bonds to surfaces, unlike other materials.

The caveat to this foam is that it is tough to remove if you do not want it to insulate your vehicle indefinitely. Also, it would help if you considered encasing the foam behind another structure, like behind an interior wall you build in the vehicle to add additional insulation as well as decrease the chances of foam particles from getting into the air.

2) Ecowool / Hemp / Fleece

These three materials are good insulators to heat in addition to eco-friendly options for insulating techniques. These materials can also be used for other purposes, such as blankets or coverings, considering they are plush and comfortable to the feel. These materials can be used as insulators, however, they can be costly, or attract certain types of pests.

3) Glass Fiber

A very common form of insulation, glass fiber, is cheap and highly available for vehicles. You can use glass fiber to pack cavities and tight corners to make sure heat stays out of your survival vehicle. Two things worth considering is that your vehicle may develop a slight odor and that this material cannot stop or prevent moisture.

4) Polystyrene

Polystyrene is an excellent insulator, especially if you are anticipating cold winters. This plastic is very renowned for keeping heat inside vehicles and homes. Polystyrene is flexible enough to fit inside and around small areas of your vehicle, even at the recommended half-inch thickness. This material can be fitted inside your vehicle to perfection using the right measurements and cut with a saw.

5) Kingspan

Kingspan, named after the company that invented it, is made of layers consisting of phenolic foam and reflective silver. It’s mostly suitable for large areas inside your vehicle, as it is too thick for smaller areas and corners. You can easily cut this foam and it does a good job keeping out either hot or cold air from seeping in from the outside.


Each insulator has advantages as well as disadvantages over others. Consider choosing the one that best suits your budget and your bug out vehicle, as there are many factors to consider from the size and shape of your survival vehicle, among many others.

The name Rugged Man was born out of a bet gone horribly wrong, however, the name stuck. Technology nerd by day, and survival enthusiast by night, he is committed to helping thousands of everyday people become more educated about topics such as Prepping, Survival, and Bug Out Strategies.

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