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Moss and Algae on Your Roof: What Homeowners Need to Know

If your home in Marietta, GA is located in shaded areas, you may be familiar with the unwelcome presence of moss or algae. Alternatively, if it frequently experiences rainfall and humidity, similar issues may arise. In either case, these conditions can contribute to the growth of moss or algae on your roofing. This issue isn't unique to Marietta; many regions across Georgia contend with similar challenges due to their climate.

Distinction between Moss and Algae

Understanding the distinction between moss and algae is crucial when addressing these rooftop invaders. Moss, a type of plant, tends to form tufts or mounds on the roof. It often turns green during wet periods and brownish-green in drier seasons. On the other hand, algae, a spore-spreading organism, can manifest in various colors such as brown, gray, blue, or green. It typically appears in streaks along the shingles.

While both moss and algae pose threats to your roof's integrity, they do so in different ways. Algae can impair the reflectivity of highly reflective roofing systems, potentially leading to increased energy costs for heating and cooling. Moss, however, poses a more direct threat by damaging shingles. This damage can cause them to lift or curl over time, leading to water infiltration, moisture damage, wood rot, and eventually, leaks.

Preventing moss and algae growth is feasible regardless of your roofing system or climate.

  • Clear Debris: Regularly clear debris from shingles and gutters, especially after storms, to prevent moisture traps and curb moss and algae growth.
  • Sunlight Improvement: Trim overhanging trees to allow more sunlight onto the roof, deterring moss and algae growth fostered by excess shade and moisture.
  • Address Drainage Issues: Correct any issues with an incorrect drainage or gutter system to prevent water accumulation and create an unfavorable environment for moss and algae.
  • Enhance Ventilation: Ensure proper ventilation to discourage moss and algae growth, as poor ventilation contributes to the retention of moisture.
  • Professional Roof Cleaning: Seek professional assistance for roof cleaning to avoid damage from improper techniques, ensuring effective removal without compromising roofing materials.

Protect Your Roof with Copper-Infused Asphalt Shingles

For a longer-term solution, consider upgrading to copper-infused asphalt shingles, which are designed to resist moss and algae growth. Georgia Roof Advisors, serving Marietta, GA, and surrounding areas, specializes in providing expert roofing solutions tailored to your needs. Contact us today for a free evaluation and let us safeguard your roofing investment with quality craftsmanship and expertise.

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