How to repair granular loss on roof

Granular loss on a roof occurs when the granules on the shingles start to wear away or fall off, exposing the asphalt. Here are the steps to repair granular loss on a roof:

  1. Inspect the roof: Start by thoroughly inspecting the extent of the granular loss. Check for any underlying damage or cracks in the shingles.
  2. Gather necessary tools and materials: You will need a ladder, safety equipment, roofing nails, roofing adhesive, a putty knife, a brush, and replacement shingles that match the existing ones.
  3. Clean the area: Use a brush or broom to gently sweep away any loose granules or debris around the damaged area. This will ensure a clean surface for repair.
  4. Fix loose shingles: If there are any loose or flapping shingles, apply a small amount of roofing adhesive under them to secure them back in place. Use roofing nails to further secure the shingles.
  5. Apply adhesive: Apply roofing adhesive to the exposed areas of the shingles where granular loss has occurred. Gently spread the adhesive using a putty knife, making sure to fill in any gaps or areas with missing granules.
  6. Replace severely damaged shingles: If there are shingles that are severely damaged or have extensive granular loss, you will need to replace them. Carefully remove the damaged shingles by lifting the surrounding shingles and prying out the nails. Slide the replacement shingles into place and secure them with roofing nails.
  7. Press down granules: While the adhesive is still wet, sprinkle some loose matching granules onto the repaired area. Use a brush to gently press the granules into the adhesive, ensuring they adhere properly.
  8. Clean up: After completing the repairs, clean up any remaining debris and ensure everything is secure and in place.

Remember to prioritize safety while working on a roof by using appropriate protective gear and following safety guidelines. If the damage is extensive or you are unsure about repairing it yourself, it is recommended to hire a professional roofing contractor for assistance.

Granular loss on roof repair cost

The cost to repair granular loss on a roof can vary depending on the extent of the damage and the type of roofing material. Granular loss occurs when the protective granules on asphalt shingles start to wear off, exposing the underlying material to UV rays and weathering.

If only a small area of the roof is affected, you may be able to repair it by replacing individual shingles. The cost of replacement shingles can range from $1 to $5 per square foot, depending on the quality and brand.

However, if a larger portion of the roof is affected, it may be more cost-effective to replace the entire roof. The average cost to install a new asphalt shingle roof is around $5,000 to $10,000, depending on the size and complexity of the roof.

Keep in mind that these are just rough estimates, and actual costs may vary based on factors such as the location, contractor rates, and additional repairs that may be needed. It’s best to contact a professional roofing contractor to assess the damage and provide an accurate cost estimate for repairs.

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