Applying a moss killer to the entire roof is a popular removal method. These products usually have zinc sulfate, iron sulfate, or potassium salts in the formula that are all effective at killing moss ...

experts recommend using a special cleansing agent to remove any remaining root system residues. Applying this agent several times on severely affected areas and treating the roof with silicone-based ...

All products and ... most popular types of roofing materials, but they can get dirty as they age and start showing black streaks, lichen growth, mildew growth, and moss growth.