Preventing Mold and Mildew Growth

If you have problems with mold and mildew try to prevent its growth after painting or be forced to repaint sooner than expected. Mildew can damage all paints and the surfaces it is growing on.

A simple way to establish the presence of mold and mildew is to apply a few drops of chlorine bleach to the affected area. If it is present, the discoloration will lighten and disappear after a few minutes.

This discoloration is a fungus that flourishes in warm and moist environments. And appears as a black, brown or gray discoloration that can be mistaken for dirt build up.

Mold and Mildew Prevention Strategies

The best way to control the growth of fungas is to prevent its growth in the first place. A clean, dry, light filled environment discourages its formation.

Exterior Mold

Landscaping should allow for good air circulation and sunlight. Keep shrubs, mulches, plantings and hanging tree limbs away from your home.
Maintain sprinkler systems and redirect sprinkler heads to keep the house dry.
Leaky gutters should be repaired and rainwater needs to be directed away from the foundation.
Wash the siding and soffits every spring with a pressure washer and mild multi-purpose cleaner.

Interior Mold

Install ceiling fans to promote air circulation.
Install and use exhaust fans in bathrooms.
Use dehumidifiers in rooms that are prone to humid conditions.
In naturally humid regions, whole house dehumidifiers should be installed.
Wash walls often with bleach and water. A mild solution of 1 cup per gallon should be safe for most painted surfaces.

Test cleaners for compatibility on a hidden area before washing large painted areas.