Disclaimer: Surface temperature is an important indicator of the product reflectance but is not the only variable affecting a product's reflectance performance.

There is a lot of talk about cool roofs, and there are some companies out there trying to market ceramic cool roof paints. They ALWAYS demonstrate their products against every other colour except for white. So we do it for them in this video..

If a building does NOT have insulation, using a standard off-the-shelf white paint (White 16) or a solar reflective paint CAN improve comfort within a building during a hot summer day but not in cold winter climates (NASA technology Solar Reflective “Insulating” Coatings may propose to outperform standard white paint, but in this video, it was not the case).
White paint helps drastically in dealing with heat; ceramic Solar Reflective paints do NOT add a measurable difference to the performance of your building.
If your building has no insulation, consider using conventional insulation.
If there is insulation, consider the below retrofits:
•Repairing sarking/foil that is torn and ripped under a tin roof with foil tape may assist.
•Fix up gaps in the insulation on your ceiling.
•Paint your roof with an external white or light-colour.

Understand that real energy efficiency performance is realised by improving airtightness and ensuring that insulation is abutted consistently to this air barrier throughout the building envelope. A solar reflective coating does not meaningfully improve energy efficiency for cooling over a standard white (white 16) coloured paint if your ceiling is consistently insulated and airtight. And even if the ceiling isn’t consistently insulated, the roof area temperature is not lowered enough to make a quantifiable difference compared to plain white paint when using ceramic solar reflective paint/coating.

Some of these Ceramic Solar Thermal Radiant “Insulation” Coating products may offer better durability and longevity than standard white paint, however they are normally applied a lot thicker than traditional paints(250micron), which may add value to an asset. Ensure the supplier provides evidence of this.

For more information, see our web page dedicated to this subject.
https://efficiencymatrix.com/understa...

Some research papers:
https://nrcawebstorage.blob.core.wind...
https://energy-seal.com/wp-content/up...

#nasatechnology #ceramiccoating #coolroof