Causing adhesion loss from a top coat of latex over many layers of old alkyd or oil-based paint.
Usually caused by painting over 3 or more layers of alkyd or oil-based paint with a latex top coat. The old paint has become brittle and will lift off the surface. Inadequate surface preparation. Using a not-recommended topcoat.
Remove all the loose paint by scraping or wire brush for masonry. Power washing is recommended for large areas. Feather sand edges for smooth appearance and rinse thoroughly with a hose. All bare areas will need spot priming.
PRIMERS & EXTERIOR FINISHES
Priming is essential for better adhesion, sheen uniformity, mildew control and durability. Select a top quality exterior paint in the color and sheen of your choice.