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Why Algae Appears on Some Roofs

10 hours ago

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Fasto Roofing explores the causes and solutions for algae growth on roofs, emphasizing the importance of prevention and maintenance to protect your home.



Understanding Algae on Roofs

What is Algae?

  • Algae: Aquatic, photosynthetic organisms without leaves, stems, or roots.

  • Growth: Algae spores in the air land on rooftops, latch onto asphalt shingles, and feed on the limestone granules.


Why is Algae Undesirable?

  • Damage: Algae weaken shingles by eating away at the limestone.

  • Spread: Algae can combine with fungus to form lichen, which is more destructive.


Benefits of Algae-Free Roofing

Composition

  • Materials: Algae-free roofing often contains copper and zinc granules that prevent algae growth.

  • Durability: These roofs offer significant long-term savings by reducing algae-related damage.


Advantages

  • Protection: Prevents algae, mildew, and moss growth.

  • Aesthetics: Available in various styles to match home architecture.

  • Energy Efficiency: Offers protection while maintaining a visually pleasing appearance.


Maintaining an Algae-Free Roof

Cleaning and Prevention

  • Cleaning Solution: Use a mixture of half household bleach and half water to remove algae.

  • Preventive Measures: Insert copper or zinc strips under shingles along the roof peak to minimize algae growth.


Best Practices

  • Dark Shingles: If algae-free roofing is not an option, dark-colored shingles can help hide algae stains.

  • Gutter Maintenance: Keep gutters clean to prevent moisture buildup, which promotes algae growth.


Are Algae-Free Roofing Shingles Worth It?

Cost vs. Benefit

  • Investment: Algae-free shingles cost more upfront but extend the roof's lifespan.

  • Options: Asphalt shingles are the most affordable algae-free roofing material, with three types: three-tab, architectural, and luxury shingles.


Conclusion

Choosing algae-free roofing materials can significantly extend your roof's lifespan and maintain your home's appearance. 


For more details on Hazards of Having a Damaged Roof, click here.



10 hours ago

1 min read

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