How To Paint A Mouldy Bathroom Ceiling

How To Paint A Mouldy Bathroom Ceiling
  • Author: Amanda Arnold
  • Posted On: May 6, 2022
  • Updated On: August 21, 2023

It’s easy to restore the beauty of your shower by learning how to paint a bathroom ceiling with mould. Before painting, remove the mould and apply a primer to the stained area. To remedy a mould problem on a bathroom ceiling, which must be treated before it can be repainted, some crucial concerns must be addressed.

Understanding the cause of the mould, curing it, and prepping the surface for painting are among the issues. If the mould is not properly managed, it will simply reappear. It is preferable to take action to prevent mould from returning.

Continue reading to learn how to paint a bathroom ceiling with mould properly.

What Are The Main Causes Of Mold On Bathroom Ceiling?

Mold thrives in damp or moist environments and those with poor air circulation. Bathrooms are likely to develop mold because the humidity is a key factor.

Mold can grow on a bathroom ceiling because showers, sinks, and bathtubs all contribute to moisture in the air. Before repainting the bathroom, it’s vital to figure out what caused the mould. The problem will persist if nothing is done. Mold can rapidly resurface, even after fresh paint has been applied.

Mold can often take hold simply because of the humidity created by showers. If your bathroom doesn’t already have one, you can solve this problem by installing a vent fan. If you have an exhaust fan, make sure it’s ducted to the outside and powerful enough for the space. If not, it can be replaced with a more suitable model.

Ways To Paint A Mouldy Bathroom Ceiling

It’s a bad idea to paint over mould without first destroying it and treating the area. If you paint over mould, the fungi will survive and reappear. Allowing mould to flourish and thrive behind a coat of paint allows it to spread, causing health issues for your family and potentially depreciating your property.

Clean The Mouldy Ceiling Thoroughly

Fill a spray bottle halfway with bleach and half with water. Allow the solution to sit for a few minutes on the mouldy area. Because bleach has a strong odor, it’s better to spray the ceiling with the windows and doors open.

Vinegar or Borax can alternatively be used to replace bleach. However, remember that combining these compounds might result in poisonous vapors that can be harmful if ingested. Mold can spread to other bathroom parts, including the walls, toilet, and shower.

Add A Coat Of Primer Before Paint

After the mould has been removed, a paint primer should be applied to the affected area. Coating the area where the mould once stood will aid in the paint’s adhesion. A coat of priming will also assist in preventing mould stains from appearing through the new paint.

Without it, you’ll have to apply numerous coats of paint to achieve the same effect.

You Are All Set To Paint The Ceiling Area

You can finally start painting now that the area has been primed. Repainting the entire ceiling rather than just the mouldy area will result in a better, more equal finish. Use moisture-resistant paints that allow moisture to drip off rather than soaking into the drywall or wood for the greatest results.

The glossy texture of these moisture-resistant paints is common. Avoid paints designed for basements and external walls when selecting paints. External-use paints typically contain toxic quantities of chemicals that might cause respiratory problems.

Install Vent Fan To Save The Ceiling From Mold In Future

It’s a good idea to keep any moisture in the area to a minimum to keep a bathroom ceiling clear of mould. The easiest method to do this is to use the vent fan properly. When someone is taking a shower, the bathroom vents should be turned on and left running for at least half an hour.

Instead of allowing moisture to linger in the air, this will pull it out. Dehumidifiers and air conditioners can both aid with moisture control. Other minor changes can help to lessen overall bathroom dampness. Squeegee the glass shower doors, and wash off the tile with a soft towel.

It also helps to leave the bathroom door open after a shower. The less water left in the room, the less likely mould and mildew will establish a foothold.


If you know how to paint a bathroom ceiling with mould, it will help to prevent the mould from returning. You can restore the safety and attractiveness of your bathroom by removing the mould with home items, applying a coat of primer, and repainting the entire ceiling.

Repainting isn’t enough by itself, of course. Look for the source of the moisture that allowed the fungus to grow and address it to avoid future mould outbreaks. Mold may be controlled by cleaning the bathroom with borax regularly.

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Author: Amanda Arnold

Amanda has been working with ConstructionHow since 2021. Her experience spans over 5 years in the creative niche such as home decor and trends, landscaping, renovations, and custom architectural values. As a home designer expert, she has a keen eye for the latest home improvement trends with accurate facts that readers find impossible to ignore. Being invested in home-building trends is how she has gained her lucrative expertise exploring more to bring a positive ambiance for all homeowners (and even tenants!). Currently, she lives in a beautiful beach home, a source of fascination for her.