See how much a CryoPaint roof could cool your home and cut your A/C bill — just answer a couple of quick questions below. ☀️→❄️
Live weather at your address → what a CryoPaint roof surface is doing right now, and for the next 24 hours.
Current conditions come from Open-Meteo, with true cloud cover read from the nearest airport’s METAR. ☀️→❄️
Roof detail mode: 1-D transient model of a coated roof (spectral two-band 8–13 µm sky window,
tilt-aware view factors, implicit solver, PCM, temperature-dependent insulation k(T)).
Whole building mode: single-zone box (4 walls + roof + slab floor) with windows, per-surface coatings,
mean-radiant "feels-like" (operative) temperature, and A/C electricity. Ideal clear-sky design day at a
selectable U.S. location (default: Phoenix, AZ). CryoPaint optics (R=0.94, ε8–13µm=0.90) are
Cryo X measured values; other properties use peer-reviewed stand-ins — see SPEC.md / PHYSICS.md.
Want every dial — insulation, windows, walls, humidity, charts? Flip to ⚙️ Advanced up top.
📍 Where is the roof?
Pulls current temperature, humidity and wind, then the nearest airport’s METAR for true cloud cover.
air temperature
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CryoPaint surface
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net cooling power available
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vs a dark roof right now
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sky window openness
Next 24 hours at this location
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deepest cooling
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weakest moment
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24-hour average
Live conditions & data sources
Peak surface temp
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Sub-ambient (noon / night)
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Roof cooling load (day)
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A/C electricity (house/day)
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Temperatures over the day
Heat flux into the conditioned space (W/m²)
Surface energy balance — free body diagram at –
Instantaneous balance (W/m²)
12:00
Daily roof-driven A/C electricity — every coating × assembly at current slope
Annual energy & savings
PDRC × insulation — daily A/C electricity vs insulation R-value
Effect of slope — daily cooling load
Effect of slope — CryoPaint sub-ambient depression
Feels-like (operative) temp
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Radiant gap (MRT − air)
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A/C electricity (day)
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Savings vs baseline
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Building heat-flow diagram at – — surface temperatures & heat flux
Interior surfaces
14:00
Interior temperatures over the day — air, mean-radiant, operative (feels-like)
A/C cooling power over the day (this building vs baseline)