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It is controlled by how the surface handles radiation the moment it arrives.
Most materials fail at the surface. They absorb, store, and slowly release heat. That is why surfaces stay hot after sunset and why buildings continue to radiate into the night.
If you want real performance, you manage the surface. And that comes down to three pillars.
Solar energy arrives in three main bands:
Infrared is the problem. It is heat.
If the surface reflects that radiation, the energy never becomes load. If it absorbs it, you now have a storage problem.
High reflectance reduces initial heat gain.
Low reflectance guarantees thermal loading.
Reflectance is the first filter. Without it, everything downstream works harder.
No surface is perfect. Some energy always gets in.
The second pillar is controlled emission.
A high-emissivity surface can re-radiate absorbed infrared back out before it migrates inward. This is critical in hot climates and equally important in managing night-time heat release.
But emissivity alone is not a strategy.
Many coatings advertise high emissivity. If they absorb too much energy in the first place, all they are doing is managing stored heat after the fact.
That is damage control, not prevention.
This is the pillar most people ignore.
Thermal diffusivity determines how quickly heat moves through a material. It combines conductivity, density, and specific heat.
If diffusivity is high, heat moves fast.
If diffusivity is low, heat moves slowly.
Density matters here. A dense surface stores more energy. A lighter, engineered ceramic structure reduces the ability of the surface to load heat in the first place.
This is surface stability.
This is where real insulation behaviour begins.
Bulk insulation works deeper in the system.
Surface thermal management works at the point of impact.
Most coatings focus on one pillar:
Real thermal control requires:
Remove one, and performance drops.
A surface that reflects but conducts quickly will still overheat.
A surface that emits well but absorbs heavily is already compromised.
A surface that is dense and thermally active becomes a heat battery.
Thermal surface management is not about thickness.
It is about physics at the interface.
When you stabilise the envelope at the surface:
Three pillars.
One outcome: controlled energy flow before it becomes a problem.
That is how surfaces should be designed.
Most coatings pick a lane. Super Therm® doesn’t. It is engineered to control heat at the surface across all three pillars, not just one. Its multi-ceramic structure delivers high reflectance across UV, visible and near-infrared, stopping the majority of solar load before it enters.
What little energy does interact is immediately pushed back out through high emissivity, preventing heat build-up. Then the key difference – its extremely low thermal diffusivity and controlled density slow any remaining heat transfer to a crawl, stabilising the surface instead of letting it act like a heat battery. The result is simple: heat is rejected, not stored, and the building never takes on the load in the first place.
Super Therm Testing and Results
https://neotechcoatings.com/super-therm-testing-and-results/
Cool Roof Rating Council – Reflectance and Emittance
https://coolroofs.org/resources
U.S. Department of Energy – Cool Roofs Overview
https://www.energy.gov/energysaver/cool-roofs
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