Coatings based on Kynar Aquatec® emulsions pick up very little dirt.  This resistance is important for all colors, but none more so that white.  Roofing coated with Kynar Aquatec® emulsions can achieve Total Solar Relectance values greater than 0.80 and retain those high values for many years.  Figures 1 and 2 show the dirt shedding performance of Kynar Aquatec® coatings compared to conventional acrylic roof coatings.

Kynar Aquatec®
emulsion-based coating	Acrylic coating
Figure 1	Figure 2