How to fix mold on bathroom ceiling – Complete guide

Mold on bathroom ceiling

Mold on the bathroom ceiling that you can see when you take a relaxing bath in the bathroom. 

It is a problem no one needs to discuss with others. But unfortunately, it is a common problem for every bathroom owner. 

If your house is locating in a moist area, this is a huge problem that you have to face.

The good news is, you don’t need to live with it forever.

Find how to clean bathroom mold simply DIY.

So if you face trouble with this issue, this article will help you.

In this article, I hope to discuss everything about bathroom mold and how to fix it.

The main reason for mold is the wet situation of the bathroom ceiling and walls. The mold loves water.

Steam of shower or bathtub with hot water can rise to the ceiling and settle there without proper ventilation.

If water keeps for a long time, mold will start to grow on the bathroom ceiling.

In addition to being dirty, the mold can also cause health issues.

According to health institutions, mold can cause Nasal congestion, throat irritation, cough or shortness of breath, and skin irritations.

Even more, serious lung infections can occur in people with weakened immune systems.

Is bathroom mold dangerous?

Is bathroom mold dangerous
Credit –

Most times, the mold on the bathroom ceiling looks not good. For some, it can provoke allergies and asthma.

Tolliver said: Molds are relatively harmless but can be harmful under certain conditions. 

If you have a pre-existing allergy or COPD or some form of respiratory illness, the spores can irritate your lungs and increase your risk of developing asthma or COPD.

People suffering from bathroom mold can experience a runny nose, cough, and sore throat.

Ogden noted that people with allergies should test on how they are bothered by specific allergies.

Mold is an irritant that can detect by allergy tests.

So if your bathroom has mold on the bathroom ceiling, you should need to make your attention to remove it.

Over-treatment can constantly alleviate the feeling associated with an allergic attack, but more severe cases may require the intervention of a physician.

Minor adjustments can keep mildew and mold in check to prevent potential allergies.

Causes to grow mold on bathroom ceiling.

Moisture and mold problems on the ceiling can occur for a variety of reasons.

For clarity, let’s look at the most common ceiling issues in two broad categories:

  1. Humidity
  2. Liquid moisture

Humidity problems occur when hot, humid air interacts with a ceiling, causing it to condense and then develop internal molds.

Exposure to liquid water causes problems with liquid moisture.

Plumbing failure and roof leaks can get as examples.

Occasionally the mold on bathroom ceiling growth is due to a combination of both factors.

In the photo above, the ceiling mold left the house empty due to an extensive flood.

Although the water never touched the ceiling, the flooded basement created extreme humidity throughout the house. However over time, mold grew on the bathroom ceiling.

Mold growth on the ceiling is often visible. But there is another building defect that looks very similar to mold on the bathroom ceiling.

It calls ghosting. And it happens when smooth and dusty particles stick to the ceiling. Over time, these particles form a permanent stain. The clue is in the pattern.

The ghost often appears in perfectly straight lines. Why? The lines correspond to the frame ties of the attic above.

The framing is a worse insulator than the surrounding fiberglass, which runs through the lower ceiling.

Cold temperatures cause condensation, which causes smoke and dust particles to stick.

Ghosting from cigarette smoke.

Ghosting from cigarette smoke
Credit –

Cigarette smoke can stain through the principle of the ghost. This soot connects to the cold spots on the ceiling.

In this case, this was due to the uninsulated areas of the attic. And soaking and cleaning the ghost is extremely difficult. Usually, your only way is to repaint to remove this mold on the bathroom ceiling.

Mold growth.

Ceiling mold growth is usually black. If you look closely, you can often see filaments with a fungal structure.

Mold growth requires more moisture/humidity than ghosting.

Identify the cause to grow mold on the bathroom ceiling.

Commonly found in older homes, high humidity and poorly insulated ceilings can help mold growth on the bathroom ceiling.

Mold growth due to humidity (different from liquid moisture) can often identify by growth pattern.

A trained professional can usually quickly identify a ceiling mold on the bathroom ceiling.

Below are tips for each moisture.

Symptoms of mold growth based on humidity.

  1. Mold growth on the perimeter of the room is worse.
  2. The mold is on the upstairs floor.
  3. The attic is poorly insulated.

Symptoms of mold growth based on roof leakage.

  1. The color is brown/yellow.
  2. The mold/stain is shown below as a circular pattern.
  3. Mold growth is limited to a single zone.
  4. Roof leakage before ceiling molds develop.

Condensation-based ceiling mold.

The reason for the growth of mold is the increase in air humidity. So the volume of mold growth can easily understand from the interior of the house.

Stand in the middle of the room and look up. If you do not see the mold, there will be no mold on the other side of the ceiling. Mold testing recommends in these cases.

Liquid-based ceiling mold.

The opposite is true for roof leaks, pipe leaks, and so on. There may be more mold growth on the bathroom ceiling backside of the sheetrock than on the side facing the room. However, the only method that can accurately identify the extent of mold growth is a visual inspection of the back of the ceiling.

Unusual chances to have mold on bathroom ceiling.

Unusual chances to have mold on bathroom ceiling
Credit –

Sometimes we come across a significant project that poses unique challenges. And often these are due to mold problems in bathroom ceilings. 

In this case, water loss and mold damage occurred in dedicated rooms or bathroom areas.

While entertaining the homeowner, home theater rooms are often flag by noise-killing material used in ceiling and wall cavities.

In the diagram below, you will see some unusual items.

  1. Inner floor insulation.
  2. The additional layer of particleboard.
  3. Upholstery fabric.

Drying out this ceiling/floor system usually requires more work than calling for a water intrusion to prevent mold on the bathroom ceiling or any ceiling.

As you can imagine, once the moisture enters the interior of the ceiling cavity, it does not escape easily.

Fix the reasons for mold on the bathroom ceiling.

First, you need to identify and remove the source for mold on the ceiling. So here is the step-by-step process that you can try to do it.

Check the leakage of the roof.

Most ceiling molds come from water leakage through the roof cover.

If water comes through the roof first, you need to repair the roof before removing the mold on the bathroom ceiling.

Make sure about proper ventilation and air circulation.

The main reason to develop the mold in the bathroom and kitchen is no proper ventilation to the ceiling.

You can add a ceiling fan or extractors in the room to remove the wet air from the room’s inner.

Some extractors can install by yourself and, you need professional service to install some extractors.

Speak with your local hardware service provider to select the best extractor for your room.

Try to allow more natural lights.

Try to allow more natural lights
Credit –

The molds love to dark rooms and, it’s developing so fast in dark areas. So keep more openings for natural lights and reduce the mold on the bathroom ceiling.

If you cannot add natural lights, try to add more artificial lights. Because the artificial lights make more heat and reduce the mold growth on the ceilings.

Improve insulation to reduce mold on the bathroom ceiling.

Improve insulation to reduce mold on the bathroom ceiling
Credit –

If your house has poor insulation, it will encourage mold growth on the ceilings. And the effect of cold air on the outside wall and warm air on the inner sidewall can cause condensation.

When heated, more humid air meets the cold wall, ensuring cooling and contributing to mold problems.

Insulation of walls and surrounding heating, ventilation, and air conditioning systems should improve.

Check the other side of the ceiling and remove if have a large colony of molding.

If show small mold in the bottom side of the ceiling, but large mold colony can improve up the side of the ceiling surface.

Mainly on the bathroom ceiling surfaces.

So you need to understand this before removing mold on the bathroom ceiling.

You removed the black dots on the bottom of the ceiling, but if there is still a large mold colony on the other side, it will improve quickly.

Use a dehumidifier against mold on the bathroom ceiling.

Use a dehumidifier against mold on the bathroom ceiling
Credit –

The molds love damp and warm conditions. So dehumidifiers remove the humidity of air and reduce mold growth and thrive.

Keep open doors and switch on the fans after bath.

If your bathroom has a lot of mold on the bathroom ceiling, always try to keep open your bathroom door. 

However, it is not practical if your bathroom door points to a living or other part of the house. In this case, you can keep open bathroom fan light window for enough time.

If you wish to build a new house in the future, remember this case and place your bathroom door in an invisible place in the house.

Hang up towels in another room

It is another simple trick to reduce growth mold on the bathroom ceiling.

Wet towels can improve the humidity of a room. And be sure to hang your towel in another room to allow it to dry well. So do this to keep the moisture to a minimum, reducing the conditions for mold growth.

If you have a mold growth problem, avoid drying indoors on shelves or chairs. Excess moisture from drying clothes can encourage more mold growth.

Bottom line.

In this article, we discuss mold on the bathroom ceiling. However, for better conversation, I discover whole house ceiling areas to explain this matter. And explain how to grow mold and remove and avoid mold problems on the house ceiling. And I hope this article will help you comfortable living in your house. If you have any questions about this, use the comment section to discuss it.

Share via
Copy link