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Strategies to Prevent and Repair Granular Loss on Roofs


2 min read

Jun 21




Understanding Granular Loss

Granular loss refers to the shedding of tiny particles from asphalt shingles. These granules provide color and texture to the shingles and protect them from UV rays. Over time, granules can loosen due to:

  • Weathering and Aging: Prolonged exposure to the elements.

  • Physical Damage: Hail, debris, or walking on the roof.

  • Improper Installation: Poor installation practices.

Consequences of Granular Loss

Granular loss can have several negative impacts on your roof:

  • UV Damage: Without granules, shingles are more susceptible to UV rays, leading to faster deterioration.

  • Temperature Fluctuations: Granule loss makes shingles less effective at regulating temperature, leading to potential heat damage.

  • Physical Vulnerability: Shingles become more prone to damage, reducing the roof's lifespan and increasing the risk of leaks.

Preventive Measures

To minimize granular loss, consider the following strategies:

  • Regular Inspections: Schedule professional roof inspections to identify and address potential issues early.

  • Clean Gutters: Keep gutters free of debris to prevent water accumulation and granule buildup.

  • Avoid Roof Traffic: Minimize walking on the roof to reduce physical damage.

  • Trim Overhanging Trees: Prevent branches from rubbing against the roof and causing damage.

Addressing Granular Loss

If you notice significant granular loss, take immediate action:

  • Professional Assessment: Consult a qualified roofer to evaluate the extent of the damage.

  • Repair or Replacement: Depending on the severity, repair or replace damaged shingles to prevent further deterioration.

Importance of Professional Roofing Services

Hiring experienced roofing contractors is crucial for maintaining your roof's integrity:

  • Expertise and Quality Materials: Professionals ensure proper installation and use high-quality materials.

  • Comprehensive Solutions: They can address granular loss and other roofing issues effectively.


Granular loss affects both the appearance and functionality of your roof. By understanding its causes and implementing preventive measures, you can extend your roof's lifespan. Regular inspections and professional services are essential for maintaining your roof's condition. For expert guidance and solutions, contact Fasto Roofing in Mason, OH. Our family values and detailed approach ensure the best care for your roof.

If you want to know how to prevent roof algae, click here.