Difference Between Moss and Algae on Roof: Damage and Cleaning
The difference between moss and algae on roof surfaces is appearance, biology, and risk: algae forms mostly flat black or blue-green staining, while moss forms raised, water-retaining green growth. Algae is usually a gradual shingle-aging and appearance concern; established moss can lift shingle edges, retain water, and contribute to leaks or roof-deck damage. Key Facts […]