Fasto Roofing provides insights into the causes of algae growth on roofs and practical steps to prevent it.
Understanding Algae on Roofs
What Is Algae?
Definition: Algae is an aquatic plant without flowers, leaves, or roots.
Growth Conditions: Thrives in humid environments, feeding on heat and moisture, especially in damp, shady areas.
Why Algae Thrives on Asphalt Shingles
Nutrients: Limestone in asphalt shingles is a favorite food for algae.
Spore Spread: Algae spores can be blown onto your roof from nearby areas, such as trees or neighboring roofs.
Consequences of Algae Growth
Aesthetic Impact: Creates dark, unsightly stains on the roof.
Material Damage: Algae can weaken shingles and invite further issues like fungi, mold, and lichens.
Preventing Algae Growth
Regular Maintenance
Tree Trimming: Keep trees trimmed back to allow more sunlight to reach the roof.
Gutter Cleaning: Ensure gutters are cleaned regularly to prevent moisture buildup.
Cleaning Algae
DIY Cleaning