Posts Tagged "zinc"
What is Roof-top Algae? It’s fungus that can leave dark stains on your roofing. Roof-top algae stains occur on asphalt shingle roofs. The roof-top algae starts as dots, then eventually (more…)
What is Roof-top Algae? It’s fungus that can leave dark stains on your roofing. Roof-top algae stains occur on asphalt shingle roofs. The roof-top algae starts as dots, then eventually (more…)