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Most insulation conversations ignore one hard truth.
The substrate matters.
Metal, concrete and wood do not behave the same under solar load. If you do not understand surface science first, you will never understand why thin-film ceramic insulation works across all three.
Let’s break it down properly.
When solar radiation hits a surface, three things matter immediately:
Bulk insulation reacts after heat enters.
Surface control determines whether heat enters at all.
Solar energy is 44% visible light, 53% near-infrared, 3% UV. Infrared is the problem. That is where heat lives.
Super Therm® is designed to block that radiation load before it drives conduction into the substrate.
Now look at how each material behaves.
Metal is the worst performer under solar load.
Why?
A steel roof can exceed 70°C in Australian summer.
Once hot, it conducts straight through.
That is pure conductive transfer.
When Super Therm® is applied at its 0.25 mm dry film thickness, it:
Result: heat does not penetrate at the same rate. HVAC load drops because the envelope is no longer acting like a frying pan.
See technical testing:
https://neotechcoatings.com/super-therm-testing-and-results/
Concrete behaves differently.
Concrete stores heat all day. Then radiates it inward at night.
This is why buildings feel hot after sunset.
Most cool roof discussions focus only on reflectance. That is incomplete. Concrete needs reflectivity plus controlled heat flow into the slab.
Super Therm® reduces the incoming radiation load. Less absorbed energy means less stored energy.
Less stored energy means reduced night-time heat bleed.
This is surface load management, not just surface whitening.
For background on heat transfer modes:
https://www.energy.gov/energysaver/heat-transfer
Brick behaves closer to concrete than timber.
Brick absorbs and stores solar radiation throughout the day.
It then slowly releases that heat inward and outward well after sunset.
Under intense sun, brick façades become thermal batteries. The stored energy drives internal temperature rise and increases night-time discomfort.
Applying Super Therm®:
On brick, the coating is not correcting poor insulation.
It is stopping the wall from becoming a heat reservoir in the first place.isaster like metal.
It is preventing cumulative heat load and material fatigue.
Because the mechanism is not substrate-dependent.
It is radiation-dependent.
Heat transfer sequence:
Control Step 1 properly and you reduce Steps 2, 3 and 4.
That is why surface science matters more than R-values when discussing solar load.
R-values measure resistance to conductive flow.
They do not measure solar radiation blocking performance.
This distinction is often misunderstood in energy modelling discussions.
Reference on solar reflectance and emissivity standards:
https://coolroofs.org/resources
Surface behaviour = how the top 1 mm interacts with radiation.
Load behaviour = how the building responds internally once heat has entered.
Metal fails fast.
Concrete fails slow.
Wood degrades gradually.
But in all three cases, the dominant summer driver is radiation load at the surface.
Block it early and you change the thermal equation completely.
If you are serious about climate resilience, you stop arguing about substrates and start controlling radiation.
Metal, concrete, wood. Different materials. Same solar physics.
Surface control first.
Bulk insulation second.
That is the hierarchy.
If you want the performance conversation grounded in physics rather than marketing, this is where it starts.
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