Common Exterior Paint Problems

he washing down of chalk from an excessively eroding paint onto another area below (a brick foundation, for example), ruining its appearance (see Chalking).

The splitting of a dry paint film through at least one coat, which will lead to complete failure of the paint.

Crusty, white salt deposits, leached from mortar or masonry as water passes through it.

A white, salt-like substance on the paint surface. Frosting can occur on any paint color, but it is less noticeable on white paint or lighter tints.

Black, gray or brown areas of fungus growth on the surface of paint or caulk.

Loss of adhesion where many old coats of alkyd or oil-based paint receive a latex top coat.

Color loss and overall deterioration of paint film on fresh masonry.