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.
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 oil-based).
Inadequate surface preparation.
Use of lower quality paint.
Applying an oil-based paint over a wet surface.
Earlier blistering of paint (see Blistering).
Try to identify and eliminate source of moisture. Prepare surface by removing all loose paint with scraper
or stiff wire brush, sand rough edges, and apply appropriate primer. Repaint with a top quality acrylic latex
exterior paint for best adhesion and water resistance.