Algae only grows where there is food and moisture and time to grow. The north side gets less sun, so stays moist longer. Dust provides a food bed, even if it is very thin. After a little dust an moisture, the first layer of algae forms a thin biofilm designed by millions of years of evolution to assist algae in holding territory and gathering more dust food. Then growth really happens. After a good cleaning, a wax may reduce the moisture retention a little, as well as reduce the grip of the dust. But there is no magic to understanding the need to regularly manage the three basic ingredients of food moisture and time.
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2008 TM2619
2008 Ford Expedition 5.4L
HomeBrew LiFePo 100ah battery box w/Anderson dongles, Abso DMT1230 charger in TV cabin
Not Yet Lift Kit, Not Yet 15 inch tires
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