How To Remove Mildew From Painted Walls

Q: How do you remove mildew from painted walls? 
A: Discovering mildew on walls can feel like a disaster. This type of fungi most commonly comes in the form of black, grey, or brown powdery substances or stains that develop on the surfaces of the paint on walls and ceilings, on caulk, and in cracks. Thankfully it is a fairly simple problem to fix as long as you get to the source of the problem and apply the right product.
A mildew problem with paint typically shows up on walls and ceilings in locations that are subject to moisture, such as outdoor patios, bathrooms, kitchens, and areas with poor ventilation, including closets. When mildew on painted wall and other surfaces begins to grow within your home, it can eat away at the paint, wood, and other parts of the building, causing structural weakness and deterioration around the infested area. Luckily there is a two-step process for testing for mildew as well as recovering the infested surface.

1. Test To See If It Is Mildew Or Mold

The first thing to do if you discover a dark mark resembling mildew on painted wall or ceilings is to test if it is in fact mold or mildew using household bleach. To do this, place a few drops of bleach on the infested area and wait several minutes. After this time, if the spot has become lighter, it is mildew, and if it is darker or unchanged, it is mold. It is important to determine the cause of the mildew, whether it be lack of ventilation, leaking pipes, water entering the house from outside, or another cause and fix this issue. 

2. Paint With The Right Product

If you have encountered a mildew problem with paint on a wall in your home, damage may have occurred to the area. To prevent the mold from returning, the area must be treated before repainting. Treat the area thoroughly and utilize a primer before applying a paint or stain. This will provide a solution that will leave the home looking beautiful, even after a mildew problem. It is important to avoid using flat paints or alkyd paints in outdoor spaces because these are more prone to damage, discoloration, and wrinkling, which can lead to mildew growth.
Mildew is a very common problem that can cause significant damage to any home and pose health problems as well. Discovering mildew can seem like a nightmare, but with proper information and the right products, the problem can be taken care of and you can make any building appear in pristine condition inside and out.
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