How to Identify and Remedy Paint Problems

Identify peeling problems by noting if paint curls away from the surface area. If so, the problem probably is the result of moisture. Make sure any moisture issues, such as leaks, are addressed before tackling the problem. Scrape off loose paint flakes with a wire brush and sand the surface to feather any edges that are sharp. Prime the bare spots before proceeding to repaint the surface.

Check the painted surface for "alligatoring." Typically, as the name suggests, the surface will look like the skin of an alligator. This painting problem results from the use of incompatible paints or painting an area with a second coat of paint before it has a chance to dry. To remedy the condition, scrape the surface, then sand and prime the problem area before repainting.

Check the painted surface for blistering by seeing if the paint rises from the surface to form blister-like protuberances. If so, scrape off a blister to see if wood or paint is beneath it. If wood is underneath the blistered paint, then moisture is the problem. If paint is below the blister, then the problem is probably due to painting the surface with an oil-based paint in excessively hot weather. The heat forms a layer on the paint's surface and captures the solvent in a bubble and thus forms a blister. If applicable, check to make sure any moisture problems are fixed, then scrape and sand the affected area before applying a primer and repainting.

Check to see if the paint surface is wrinkled. This problem results from applying paint in cold weather or painting the surface with paint that is too thick. Sand the wrinkled surface and recoat the area, making sure you use the proper consistency of paint.

Check for mildew by seeing if any patches of moldy growth appear on a painted area. If mold is a problem, you'll need to rid the area of the fungus with a commercial solution or treat it with chlorine bleach before priming and repainting. Make sure you take care of any moisture problems first and explicitly follow the instructions if you use a commercial treatment.