How To Prevent External Wall Mold Growth?

Mold-free exterior walls can be achieved by following these steps:

1. Spray the wall with a pressure washer to fan spray it.
2. Mix a mold-killing solution and sponge the wall with the solution.
3. Scrub the wall using the solution to remove staining caused by mold growth.
4. Rinse the wall with water to remove any remaining mold.
5. If mold and mildew return, apply an outdoor mold remover like Wet and Forget to your siding and trim to keep the house mold and mildew-free for up to one year.

Mold on walls in a home can be unsightly and potentially hazardous. To prevent mold growth, repair leaky plumbing and roofs promptly, improve air circulation in the home, reduce moisture with a dehumidifier, and install a moisture barrier.

Mold releases microscopic spores that cause allergic reactions, runny noses, sneezing, and irritating odors. To limit exposure to mold, limit exposure to areas with high moisture and warmth, such as baths, kitchens, and basements.

To prevent mold recurrence, ensure optimal indoor humidity (between 40-60) using dehumidifiers or air conditioners. Use mold-resistant paint for the exterior of your home to prevent mold growth.

Preventative measures include improving ventilation, regulating indoor humidity, using water-repellent paint, and proper drainage. Two treatments effective at reducing the risk of penetrating damp are masonry cream and waterproof masonry paint.

A dehumidifier can be bought or hired to extract moisture from the air and wipe down surfaces affected by condensation regularly to prevent mould growth. By following these steps, you can create mold-free exterior walls and avoid potential damage and stains.