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Loss of adhesion of a coating to the substrate (e.g. the surface that was painted) or an earlier coating. Where there is a primer and topcoat or multiple coats of paint, peeling may involve some or all of the coats.
  • Seepage of moisture through uncaulked joints or worn caulk.
  • Leaks in roof or walls, or excess moisture escaping through the walls from the interior.
  • Painting over a dirty, wet, or glossy surface.
  • Painting over a coating that already has marginal adhesion.
Remove old, loose, cracked caulk; prime as needed; and caulk with the appropriate product.

Find and repair any source of water.

Test the coating in a 6" to 12" radius around any peeled areas to be sure its adhesion is adequate.