Exterior Paint Peeling Under Eaves - Causes & Solutions

There are several possible causes of peeling paint on the exterior of a house. These causes are narrowed down when the peeling paint is in a specific area of the house, and even more so when the specific area is subject to a particular temperature, light or moisture factor not found elsewhere on the structure. There are also certain chemical issues to consider regarding different painting techniques and processes.

Why the eaves?

The first issue to consider refers to one of the most common causes of peeling: moisture. In extremely wet or moist climates, moisture is very problematic. Coming from the outside, moisture from rain combined with shading under the eaves does not offer the ideal or preferred drying conditions. The dry and damp conditions cause the paint to constantly dry and then get damp, over and over again. This creates a shrinking when dry and swelling when wet surface under the paint that results in peeling, as the paint never has the time to properly adhere to the surface and dry completely. This is indicated by a cracking appearance. Preventive care from the start prohibits this condition. By applying a primer as the undercoat and allowing to dry completely before the top coat is applied, prevention against the chipping is in place.

Prime it up

Another issue is the failure to properly apply primer before the paint itself. If exterior surfaces are properly primed, there is a good chance the paint is always going to cause grief, but prevention here is key. The most common primer used on exterior walls is a professional grade base coat or undercoat. Your paint supplier can offer a product that is compatible with your paint.
With a bit of careful and advanced planning, painting the exterior of a house does not have to cause a migraine.

Primers and Finishes

Select a top quality exterior paint in the color and sheen of your choice.Priming is essential for better adhesion, sheen uniformity, mildew control and durability.

Substrates, Primers

Substrate: Wood
Primer: 255 Stain Lock II Acrylic Primer
Finish Coats: 1240 Acry-Shield Exterior Flat Finish
1245 Acry-Velvet Ext. Low Sheen Finish
1250 Acry-Lustre Ext. Semi-Gloss Finish
1235 Seasons Ext. 100% Acrylic Flat
1236 Seasons Ext. 100% Acrylic Low Sheen

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