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If your walls are turning black in a corner, it’s no accident: find out what it really means (and how to fix it)

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And to combine business with pleasure, you can add a few drops of tea tree essential oil to your cleaning water. In addition to its fresh scent, it’s known for its antifungal properties.

How can we prevent it from coming back? (Because we don’t want to do it every month)

Once the walls are cleaned, the most important thing is prevention. Ideally, you want to address the problem at its root.

If your ventilation system isn’t adequate, consider installing a mechanical ventilation system or at least improving your air extraction. Good ventilation works wonders.

Also keep an eye on the humidity level in your home. A small hygrometer costs next to nothing, and you’ll quickly know if the air is too humid. The right range? Between 40 and 60%.

If your walls are prone to moisture, you can also apply a special anti-humidity paint. It doesn’t do everything, but it provides a welcome layer of protection.

And if you have any doubts about leaks or an insulation problem, it’s best to call a professional. A tradesman or a humidity expert will be able to provide a proper diagnosis. Sometimes, what you see on the wall is just the tip of the iceberg.

Absolutely avoid: painting directly over a mold stain, hoping it will “hide the problem.” It’s a cover-up, and it will come back sooner or later. The same goes for gas space heaters without proper ventilation: they release water vapor, which only makes the situation worse.

What if the stains come back despite everything?

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What if the stains come back despite everything?

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