Shaded walls, north elevations and areas near irrigation in Tallahassee often turn green or black within a few years. That growth is mildew, algae or both, and it is the most common reason exterior paint looks dirty long before it fails.
Why painting over it fails
Live growth under fresh paint keeps spreading. It can show through in weeks and weakens the bond between coating and surface, which leads to peeling.
The right way to clean
- Apply a mildewcide wash and give it time to work
- Rinse thoroughly so no cleaner residue is left behind
- Protect landscaping, windows and parked cars
- Let surfaces dry before priming
Prevention
- Use exterior coatings with mildew-resistant additives
- Redirect sprinklers that hit walls
- Trim trees and shrubs away from the building to improve airflow and sun
- Schedule a gentle wash every year or two to extend the life of the paint
We include mildew treatment in every exterior bid. Call or text (850) 616-8366 to get yours.