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Shipping containers aren’t hard to insulate.
They’re hard to stop from overheating.
Most builds fail for one reason: they treat insulation as the solution.
It’s not.
A container in the sun does three things:
That’s why:
You’re not just dealing with temperature.
You’re dealing with stored heat load.
Foam insulation (PIR, EPS, spray foam) works like this:
But in summer:
Once heat is inside, it doesn’t leave quickly. It reverses slowly, and your container becomes a heat trap.
This is thermal lag.
You’re not removing heat – you’re shifting when it hits.
Solar energy isn’t equal:
Traditional insulation deals with heat after it enters.
Super Therm® deals with it before it enters.
That’s the shift:
Applied to the outside of the container:
In simple terms, your container behaves more like it’s under shade than direct sun.
That changes everything downstream.
In real-world testing:
Why?
Because once you control:
You stop energy leaking in and out.
Without airtightness:
If you want performance, build in this order:
Most people start at step 2.
That’s why results fall short.
Depends on how you use the container.
For:
You can often run:
Why it works:
For:
A hybrid system is stronger.
Foam panels take space:
In a container, that matters.
External coating:
When heat load is controlled at the surface:
In testing, coated containers heated faster and held warmth longer due to reduced heat loss through the steel.
Beyond temperature:
These become critical in small, sealed environments.
Be clear:
In these cases, combine systems.
If you’re insulating a shipping container, you’ve got two choices:
Most people choose the first.
That’s why they end up with a hot box that’s expensive to run.
Foam manages heat.
Super Therm® stops it.
Get the surface right first—and everything else becomes easier.
Insulating Shipping Containers – NEOtech Coatings
https://neotechcoatings.com/insulating-shipping-containers/
Insulating Concrete Tilt-Up Walls – NEOtech Coatings
https://neotechcoatings.com/insulating-concrete-tilt-up-walls/
YourHome – Insulation Guide (Australian Government)
https://www.yourhome.gov.au/passive-design/insulation
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