Symptoms: Peeling Paint Due to Exterior Moisture Under Paint Film
As mentioned in the previous section, peeling paint is a very common paint problem that can be caused either by moisture or poor adhesion. Peeling due to moisture is recognizable by large peeling sections of paint exposing bare wood underneath. Unlike peeling due to adhesion problems where peeling may be spotty, with moisture related peeling larger areas peel away often around windows, doors and gutters.
Potential Causes:
- Moisture getting behind paint film from failing or missing caulk, leaks in roof or wall systems or being too close to the ground.
- Faulty guttering or missing ventilation causing ice dams or water back up.
- Painting when the surface being painted is wet from condensation or rain.
- Ensure proper drainage of gutters and downspouts flowing away from home.
- Eliminate cause or source of moisture by installing exhaust fans, soffit vents, siding vents, louvers, fans, and dehumidifiers.
- Repair and replace missing or damaged caulk.
- Scrape away old peeling paint and feather sand affected areas.
- Spot prime bare area.
- Caulk as required with appropriate caulking product.
- Repaint with a high quality acrylic latex house paint.
