Create a tile identification sheet
Have a qualified roofer provide clear photographs of an accessible representative tile: face, underside, side profile and any maker’s marks. Add measured dimensions and the roof location. Historic tiles may carry a manufacturer, size or pattern name on the back. Preserve those clues, but do not rely on a single name to establish compatibility.
Check the whole form against the original
Compare thickness, curvature, edge shape, interlock, hanging features and exposed dimensions. NPS notes that a pattern name can survive while the manufacturer changes its shape or dimensions. A visually similar replacement may therefore fit poorly. Ask the specialist to evaluate an actual sample with adjacent original tiles before accepting a purchase based on catalog resemblance.
Look for new replacements before assuming scarcity
Some manufacturers maintain repair programs for selected older profiles. Ludowici’s Renovation Quickship lists small-quantity historic field and trim products, but the page also warns of extended production lead times. Check the exact profile, color, accessories and current availability. A program name should not be interpreted as a delivery promise or proof that every discontinued tile can be supplied.
Use the roof’s visibility to guide matching decisions
Where a close new match cannot be obtained, a preservation specialist may consider using sound original tiles in prominent areas and compatible replacements in less conspicuous locations. NPS discusses this approach for historic roofs. Record where each material will go, and recognize that a replacement matching today may weather differently from the original tile.
Keep the approved evidence with the roof
Retain the identification sheet, accepted sample, photographs of the trial arrangement and supplier correspondence. If the chosen match has a known difference, describe it clearly rather than hiding it behind a similar product name. Record the locations of replacements and stored spares so a later repair can repeat a considered decision instead of starting the identification process again.
Related questions
- Can a current tile with the same historic pattern name still be incompatible? →
- What can a maker’s mark on the back of an old roof tile tell me? →
- Why might a supplier need a complete tile instead of a photograph of a broken corner? →
- What information helps a manufacturer reproduce a missing historic tile shape? →
Further reading & technical sources
- National Park Service · Preservation Brief 30 ↗
- Ludowici · Renovation Quickship ↗
- GSA · Clay roof tile repair and reattachment ↗
Consult the current product documentation and local requirements for your project. These introductions are not installation specifications.
Tile Roofing USA editorial guide · Published October 26, 2026.