The three factors
- Breakage share. A handful of broken tiles on a large roof points toward repair. Breakage across many slopes points the other way.
- Underlayment age. Tiles shed most water, but the underlayment is the waterproofing. After roughly 20 years in desert heat, felt underlayment can be too brittle to survive tiles being lifted and reset.
- Tile availability. Concrete tile profiles and colors are discontinued regularly. A patch of mismatched tile on a visible slope is a matching question, not just a cosmetic one.
How the cost comparison works
Spot repair multiplies broken tiles by a per-tile remove-and-reset figure. Slope and full replacement multiply squares by a tear-off-and-re-lay figure, which should include new underlayment, battens where needed and reuse or replacement of tile. All unit prices are editable and illustrative. Ask local roofers for current figures.
Not a coverage opinionWhether your policy pays for matching or for replacing undamaged sections depends on its wording and on Arizona law. This tool organizes the valuation facts so you can discuss them clearly.
Questions about this tool
Why does the checker care about underlayment if the storm only broke tiles?
Because repairing broken tiles means lifting surrounding tiles. If the underlayment can’t survive that, a true repair may require replacing it, which changes the cost dramatically.
Where do I find tiles per square?
Ask your roofer or check the manufacturer’s data for your profile. About 90 is common for many standard concrete tiles, but flat and specialty profiles differ.