12th December 2019

Preventing Mould Growth in Wetrooms

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Post by Wetroom Materials

Mould is a type of fungi that thrives in warm, moist and poorly ventilated areas. When left untreated, mould reproduces rapidly through the spreading of spores. But where does the mould in wetrooms and bathrooms come from? The most common culprits are water leaks (generally from leaking pipes), insufficient tanking and also as a result of excess condensation. This is why mould is such a common occurrence in wet rooms and bathrooms if the incorrect installation, aftercare, cleaning and maintenance processes aren’t upheld. But what effect does mould in bathrooms have on our health? More importantly, how do we prevent and get rid of mould? Find out the answers in the post…

The effect of mould on our health

The unsightly appearance and smell of mould are the least of your worries, mould can actually have a serious impact on our health. Those with damp and mould in their homes are much more likely to suffer from respiratory problems and allergies, not to mention the negative impact it can have on the immune system. The allergens that mould produces can result in sneezing, a runny nose, red eyes and rashes, and in more serious cases can bring on an asthma attack.

There are certain individuals who are more sensitive to others to mould. These include:

  • Children and babies
  • Elderly people
  • Those suffering from skin problems or respiratory issues
  • Those with a weakened immune system

If you or anyone using your wet room falls under these groups, staying away from damp or mould is crucial. But the question is, how do you prevent mould from occurring in the first place?

Proper installation & sealing

The most effective way to keep the growth of mould at bay is to ensure proper installation of the wetroom is carried out. A specialist wet room foundation installation company should be selected to ensure protection from leaks, proper wetroom drain installation and to make sure that the wetroom is tanked correctly.

When it comes to tanking, or waterproofing, a wet room many people fail to realise that the entirety of the space needs to be tanked correctly, not just the showering area. Similarly, weak seals between tiles make the perfect home for bacteria and mould. Water can get to just about anywhere, making it highly necessary this is carried out to a high standard to limit water damage and the growth of mould.


As we’ve mentioned above, mould grows in warm and damp environments, making wetrooms and bathrooms an ideal breeding ground. Ventilation (or ceiling fans) help to circulate air around the room, removing excess moisture and helping to prevent mould growth. As part of your wet room design and installation process, an extractor fan should have been installed to help aid this process.

Ensure that during, and for 30 minutes after your shower, this fan remains on to remove as much excess moisture as possible from the walls and ceilings. To make things easier, you can put your fan on a timer, so that it turns off automatically after 30 minutes. Not mould to see here!

Use your squeegee

These excellent inventions aren’t only amazing at keeping your shower screen clean and streak-free, but also help to avoid the build-up of excess moisture, which results in mould build-up. After your bath or shower, take the time to use your squeegee – it can actually reduce moisture in the room by up to 75%!

Clean regularly

One of the best ways to keep the build-up of mould and mildew at bay is to give your wetroom a regular clean. Around once a week, make sure you wash towels and washcloths, mop the floor, clean the shower, bath and sink to keep mould spores at bay. If you’ve noticed that some mould has started to grow, purchase a dedicated mould and mildew cleaning product that’ll help get rid of it before it becomes a more troublesome job. You can find out more about the right aftercare and maintenance required for a wetroom here.

To find out more about our cleaning and maintenance kit for wetrooms, or to download a more detailed product maintenance instruction document, visit our wet room cleaning and maintenance kit page.

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