What causes mildew or algae?
Mildew and algae can grow on practically any surface. The more a surface is cool and damp, the more prone it will be to mildew or algae growth. In general, climates like the southeast and south-central United States are more prone to mildew and algae than climates in the southwest. A quality coating is designed to resist the growth of mildew or algae on its surface. The length of time a coating will resist mildew or algae varies, but should be at least a few years.
