The Future of Cooling · The Case

We pointed Emissiv’s physics at the whole country.

Emissiv exists to break the Cooling Paradox with transparent radiative cooling coatings. The number that decides where that coating matters most is a roof’s reflectance. So we built the engine that measures it, nationwide, for free.

01 · The paradox we exist for

A warming world demands more cooling, and cooling warms the world.

Cooling already takes around a tenth of the world’s electricity, and demand is set to double by 2050. Every new air conditioner burns power and vents heat, which raises temperatures, which calls for more cooling. Emissiv’s answer is not a bigger machine. It is a coating that sheds heat to the cold of deep space, passively.

“We believe the solution is not about more complex machines, but instead one that utilises passive cooling.”
02 · The bridge

The metric our satellite reads is the metric Emissiv’s coating moves.

A radiative cooling surface works by reflecting solar energy and radiating heat away. Albedo, solar reflectance, is not a side detail of the product. It is its core performance number. That means a tool that measures roof albedo from orbit is not a different business. It is a map of where the heat, and the opportunity, are.

The darkest roofs are the ones that need Emissiv most. Now we can find every one of them.

03 · What we built

An honest, measured engine. On free data.

We stress tested the prototype, found where it was guessing, and fixed it with free data and free labels, nothing bought, nobody waited on.

7% → 86%
Roof material, measured
From a synthetic guess to 86% accuracy, trained on 1,860 real labels harvested free from the map and fused with free radar.
±0.0142 → ±0.0071
Reflectance, sharper
Stacking free satellite dates halved the noise, and a second free satellite independently cross checks the value.
National
Coverage, near zero cost
Any UK bounding box, from free Sentinel-2, Sentinel-1 and Landsat. Scales from one estate to the whole country.

Every figure is regenerable from a script, labelled measured or projected. See the full report →

04 · The heat is real

You can see the problem from space.

On a single clear day, free thermal satellite put the built surfaces of one UK estate at 41.4°C, peaking near 44.8°C, far above the air temperature around them. That surface heat load, soaked up by dark low albedo roofs sitting near 0.10 reflectance, is exactly what Emissiv’s coating is built to shed.

The Cooling Paradox is not abstract. It is 44.8 degrees on a roof, mapped.

05 · What it does for Emissiv

Find the heat. Size the prize. Prove the fix.

i

Precision demand generation

The ideal customer is a large, dark, hot roof. The engine ranks them across a city or the country, for free, with no site visits. Cold outreach becomes a targeted map.

ii

The market, quantified

Total dark roof area is the addressable market. Per building, current reflectance plus substrate gives a credible estimate of the cooling and carbon at stake, and the value of coating it.

iii

Proof at scale

The same free satellites revisit every few days, the basis for measuring change over time and verifying impact remotely, building the evidence the mission and its funders need.

06 · The honest frontier

Where the engine stops, and what comes next.

We will not oversell it, and that discipline is the point.

Targeting today, verification next. Free satellites resolve reflectance and material well enough to find and rank roofs at national scale. They cannot yet isolate one small roof’s temperature from the car park beside it, free thermal is 100m coarse, so per building before and after proof needs finer thermal (higher resolution thermal missions, aerial or drone) on the highest value sites. The path is mapped.
Lead with reflectance, verify with temperature. A transparent coating works largely through heat radiated, not visible colour, so the truest measure of its effect is surface temperature, not albedo alone. The same free data stack already reaches into the thermal band, which is exactly where the next rung of the product points.
07 · The mission, made measurable

From a belief about cooling to a map of where to act.

Emissiv set out to keep the world cool without warming it. This turns that mission into something you can point at: here is the urban heat, here is the reflective surface we can address, here is the carbon we can take out of cooling, building by building, free to survey, national in reach.

Same physics as the product. Pointed at the whole country. For free.

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Emissiv · The Future of Cooling · measured, not asserted