Cooling Energy Savings from high reflective coatings using Microspheres

This webinar shows how the solar reflectivity and thermal insulation performance of paints and coatings is enhanced with lightweight fillers, specifically Omyasphere, focusing on their ability to reduce heat build-up. Their research demonstrates that the incorporation of lightweight fillers, such as hollow glass microspheres leads to a significant decrease in the thermal conductivity of the coating layer and an increase in the Solar Reflective Index (SRI). These improvements collectively contribute to a reduction in heat accumulation on coated surfaces.

Furthermore, the introduction of lightweight fillers reduces the density of the formulations, which enhances the volume yield. The elongation property is increased, which is of particular interest for applications such as cool roof coatings, where high elongation is advantageous with respect to thermally-induced distortions.

The study's results highlight the dual benefits of enhanced SRI and reduced thermal conductivity, both of which contribute to lower heat build-up in coated surfaces. These advantages translate into potential cooling energy savings, which can play a role in reducing CO₂ emissions associated with building operations, particularly in regions with high ambient temperatures.