Loss of paint due to poor adhesion. Where there is a primer and top coat, or multiple coats of paint, peeling may involve some or all coats.

Possible cause

  • Seepage of moisture through uncaulked joints, worn caulk or leaks in roof or walls
  • Excess moisture escaping through the exterior walls (more likely if paint is solvent-based)
  • Inadequate surface preparation
  • Use of lower quality paint
  • Applying a solvent-based paint over a wet surface
  • Earlier blistering of paint (see Blistering)

 

Solution

Try to identify and eliminate the cause of moisture (see Efflorescence and mottling). Prepare surface by removing all loose paint with scraper or wire brush, sand rough surfaces, prime bare timber.

Repaint with a top quality water-based exterior paint for best adhesion and water resistance. Dulux recommends Dulux 1 Step® Primer Sealer Undercoat with Dulux Weathershield®.

For more information, please consult our detailed Technical Advice note on the topic.


More problem solving advice

Yellowing

Development of a yellow cast in aging paint solvent-based enamels

Wrinkling

A rough, crinkled paint surface occurring when paint forms a 'skin'.

Tannin staining

Brownish or tan discoloration on the paint surface due to migration of tannins from the substrate through the paint film.