
Why Roofs Get Stains: A Homeowner’s Guide to Algae, Lichen, and Long-Term Solutions
If you’ve noticed dark streaks, green patches, or crusty growth on your roof, you’re not alone. Roof stains are common in many climates and can come from several sources—most notably algae, lichen, moss, and environmental debris. Understanding what causes these stains and how to prevent them will help you protect




