Due to Moisture (Exterior)
Exterior peeling due to moisture is the loss of exterior paint adhesion, usually exposing the bare surface.
Peeling paint results when a wet surface swells, causing the paint film to loosen, crack and fall off. Water may seep under the paint film in many ways, including:
- Worn-out, or absence of, caulking in joints, corners and openings, allowing moisture to enter.
- Clogging of gutters by ice dams or debris, causing moisture to penetrate under roof shingles.
- Interior moisture migrating through to the exterior walls.
- Painted surfaces that are too close to bare ground.
- Leaking roofs.
- Painting a surface that is damp with rain, condensation or dew.
Remove loose or cracked caulking and peeling paint, and repair with a quality product.
Clean and repair gutters so they properly channel water away from the house. Be sure roof is vented and insulated properly to prevent ice dams and repair as needed.
Install vents, louvers, fans and dehumidifiers to reduce moisture, especially in the kitchen, bathroom and laundry areas.
If wood siding is touching the ground, remove that portion of the wood. Siding should be installed no less than 6" above the ground.
Remove all loose peeling paint and sand rough edges smooth. Sand to remove loose wood fibers if present. Make sure surface is clean, dull and dry. Prime with appropriate primer and recoat with good-quality paint.