How does insurance decide between roof repair and replacement?
Short answer. Insurers decide between repair and replacement by asking whether the damage can be fixed reasonably without causing more damage or leaving an obvious mismatch. They look at how many shingles and slopes are damaged, whether the existing shingles are brittle, whether the product is still made, and how repair cost compares with replacement. Evidence on each point is how a repair estimate becomes a replacement.
The factors adjusters weigh
- Extent of damage. Hits or creases spread across most slopes push toward replacement; one damaged area pushes toward repair.
- Repairability. A roofer has to lift the shingles above a damaged one to nail in a replacement. If old shingles crack when lifted, the repair causes new damage. Some roofers and adjusters do a hand lift test on site.
- Availability. Discontinued shingles, especially older 3 tab lines or unusual exposure sizes, may not be repairable with matching product.
- Cost. When repairs approach a large share of a full replacement, replacement can be the reasonable choice.
Evidence that changes the decision
- Photos or video of shingles breaking during a lift test.
- Product identification showing the shingle line is discontinued.
- A slope by slope damage count. See test squares.
- A written repairability report from the roofer.
When repair really is right
A few wind blown shingles on a newer roof with matching product available should be repaired. Replacing a sound roof for a small problem is not what the policy covers, and pushing for it costs credibility with the adjuster.
Related: matching and requesting a reinspection.