Some of the most common exterior paint problems include:
Chalking: Chalking is the formation of white powder on the surface of the paint film. This usually happens when there’s a chemical breakdown in the paint caused by poor priming and overly thinned-out paint.
Blistering: Blistering happens when moisture is trapped in the wall surface. It can also happen when the exterior of the house is painted in excessive heat.
Peeling: Peeling is the most common type of paint failure. When the surface is not properly cleaned of dirt, dust and grease or you have painted over old paint, moisture can cause the paint to peel off.
Cracking: Poor surface preparation and applying paint without removing the previous layer of paint are the main causes of paint cracking. Also, spreading the paint too thinly on a rough surface and painting without priming the wall can cause cracking.
Mildew: Mildew occurs when you use low quality paint with an inadequate amount of mildewcide. Painting over areas where mildew is already present guarantees that it will return.
Mottling: Mottling is a variation in paint color that occurs due to uneven distribution of metallic flakes. Mottling usually happens when the surface is painted during too cold or too humid weather conditions.