Bathrooms are one of the most common home locations for mould. Bathroom ceilings are susceptible to mould because of the bathroom’s ideal growing conditions for the fungus. If you are able to identify the cause of the mould on your bathroom ceiling, then you can take the steps necessary to remedy the problem.

Airborne mould spores are commonly found in both indoor and outdoor environments. Mould can grow within 24-48 hours where there’s moisture and what they consider a food source. This can be things like dust, wood, paint, paper, cotton or oil.

The actual cause of mould on bathroom ceilings can be due to high humidity, surface structure, poor lighting, poor air circulation, or any combination of these.

Bathrooms are a high humidity area of the house. This means there is a large percentage of water vapour in the air caused by steam from showers and baths. This steam naturally rises, trapping moisture on the bathroom ceilings. When a mould spore rises with the warm air it comes in contact with the moist ceiling surface and can begin to reproduce. You can reduce the humidity by ensuring there is adequate ventilation, especially during and after showers and baths. This may include opening windows and doors as well as running the bathroom fan after you have left the room. Ventilated skylights or turbo beams are also very effective drying tools in bathrooms and they have no ongoing electricity costs. If certain areas of the ceiling seem to be holding moisture, wipe them down with a cloth to remove spores and prevent reproduction.

Many bathrooms feature low ceilings that trap air and humidity, making them ideal for mould growth. Mould is drawn to corners and areas of shadow. Since ceilings join walls and create corners around the room, mould can commonly be found where the ceiling meets the wall. Cracks and grooves in ceilings also provide mould with ideal breeding grounds and should be repaired as soon as possible.

Mould is attracted to areas of shadow or low light. Most bathrooms feature one central light to cover several areas like showers, baths, toilets and vanities, increasing the likelihood that some areas will not be well lit. This is especially true for some ceiling areas. Giving mould its perfect environment for reproduction. Make sure all areas of your bathroom ceiling are well lit by installing additional lights or higher wattage globes.

As mentioned, mould spores are common both indoors and outdoors, but typically moving air prevents spores from settling onto surfaces. Poor ventilation in the bathroom gives mould spores the opportunity to settle on ceilings and begin to reproduce. Once again, to reduce this, leave windows and doors open and ensure your bathroom has an adequate extractor fan.

If your property has a mould problem and is located in the Sydney, Central Coast or Newcastle areas contact the professionals at Mould Removal today on 0408 681034 or email for an obligation free quote.We also give advice on ways to prevent mould from returning after the mould has been removed.