What Causes Mould in Bedrooms?

What Causes Mould in Bedrooms?

What Causes Mould in Bedrooms?

Mould is a hazard wherever it can be found, whether that is in your kitchen or your bathroom. Unfortunately, Mould can be anywhere, even in your bedroom.

This creates a serious health hazard as our bedrooms are where we spend extended periods of time. And breathing in all of the moulds is nothing but trouble for you and your loved one’s health.

That is why at I-Sells we are dedicated to helping our blog readers and customers understand what they are dealing with, whilst offering solutions.

In this article, we will be answering the question ‘What Causes Mould In Bedrooms?’

But first, let us give a brief explanation as to what mould is.

So what is mould?

Mould, otherwise known as damp, is a fungus that grows on wet surfaces. Mould comes in a variety of colours: Black, Green, Brown, Grey and White. It can be difficult to identify mould by colour as it can occur in many shades. Some of the most common mould strains in the home are:

  • Black Mould – Also called Stachybotrys chartarum, Black mould is commonly found in bathrooms and wet rooms but can also occur on cold exterior walls in habitable rooms such as the bedroom or living room.
  • Cladosporium – Commonly found in bathrooms, under sinks, and around faucets but it can grow on surfaces like carpets, furniture, walls, and floors.

Mould reproduces from tiny spores. The spores float through the air and deposit on the surfaces. Under adequate temperature, moisture, and nutrient conditions, the spores can form new mould colonies.

Mould can severely affect your immune and respiratory system, as the spores are easily breathable and not obvious to see through the human eye.

What causes mould in bedrooms?

Man pointing at mould

Mould in your home generally occurs as a result of condensation.

Condensation occurs when heat and moisture in the air are confined to a certain area, as this heat tries and fails to escape, droplets of water are created on cold surfaces. A good way to think about this is having a hot shower on a cold day and not opening your window.

The reason condensation creates mould is that a damp and humid environment is the optimum condition for mould to grow. Whether that be in your kitchen, bathroom, or bedroom.

The true danger of mould is that its particles can travel through the air without us seeing it, incidentally, this means opening a window with mould on it runs the risk of that mould being blown inside your room alongside the fresh air.

That being said, condensation is not the only cause of mould, it can occur from leaks in the structure of a building too.

So how does this relate to bedrooms?

Humidity and eventually condensation can occur in a bedroom for a variety of reasons, which eventually leads to mould. These are just a few contributors:

Drying clothes on the radiator without opening a window –

Heaters are not made for the function of drying your clothes. If you do use them for this function, at the very least keep the room ventilated. The excess moisture if not allowed an exit will cause condensation, thereby creating mould.

Keeping the room unventilated –

Keeping a bedroom door closed whilst not opening a window will not help regulate the temperature of the room.

 if a person stays in a room where the door and window are constantly closed, the humidity will build up gradually as a result of the body heat emitted by the person, along with the heat emitted from things such as laptops, chargers heaters and various other appliances.

Leaks –

Structural issues in a building can cause moisture to travel through an outside wall to the inside, this in conjunction with fluctuating temperatures inside and outside can cause mould to develop.

If you want to know how to reduce condensation in your home, take a read at our blog which has all the information you need here.

If you have found mould in your home, you need to assess if this is your landlord’s responsibility (for example it could be from a leaking roof that needs repairing). Or if the damp is caused by improper ventilation. To assess your options, click here.

If you’re a tenant and not sure about your rights when it comes to mould in a home you are renting, check out our blog for the answers you need.

 As we continue, we are going to share our anti-mould solutions.

Solutions for mould in bedrooms

Woman shocked at mould

At I-Sells, we are here to help you combat the scourge of mould with the solutions that we offer, here are some options available in our mould control section.

Note: In any instance of cleaning or dealing with mould, one should at the very least, wear a mask and gloves.

Kair Anti Mould Paint 1 Litre White


Kair Anti Mould Paint 1 Litre Magnolia

Painting over mould with regular paint will not get rid of it. It will only seep through the layer of paint you added. For best results, you should wash mouldy surfaces with Kair Anti Mould Surface Cleanser Concentrate. Specifically designed to clean and treat mould growth areas.

Kair Anti Mould Paint is an excellent, premium quality, low odour anti mould coating guaranteed to protect against unsightly and unhygienic black mould even when there is persistent condensation.

Offering 5 years’ worth of protection against black mould growth on walls and ceilings. We offer options of white anti-mould paint and anti-mould paint in Magnolia.

The unsurpassed performance is achieved by combining modern paint technology with highly advanced, proven biocides. The anti-mould biocide is combined throughout the paint film, which is formulated to impart toughness, elasticity, water resistance and durability to the finish. You’ll find with this product that it is:

  • Easy to use
  • Fast Drying
  • Low Odour
  • Ideal for walls and ceilings
  • Long-lasting protection
  • Matt Finish

To prepare the paint you must ensure any working area is protected and well-ventilated. Remove any loose or flaking material, including paint and paper and make good any cracks or defects.

On new plasterwork or porous surfaces, apply an initial coat of Kair Anti Mould Paint thinned up to 10% with water. New plasterwork should be allowed to dry for 7 – 14 days before any decoration.

Kair Anti-Mould Additive For Emulsion & Gloss Paint – 50ml

Maybe you don’t want white or magnolia, we have got you covered if that’s the case. Our unique Anti-Mould paint additive contains a fungicidal additive that allows you to secure anti-mould properties to:

  • Emulsion paint
  • Eggshell paint
  • Tile grout
  • Gloss Paint
  • Wallpaper paste
  • Coatings

This means alongside having anti-mould paint in colours, you can also secure your tiling grout making your shower, kitchen or bathroom anti-mould, alongside your wallpaper.

Simply apply one 50ml bottle to any 2.5L bucket of paint that fits within the parameters mentioned above and mix thoroughly.

Want to secure your home from mould? We offer the Kair Mould Control Pack, a bundle with the previously mentioned surface cleaner, and two 50ml anti-mould additives, saving you 15% more than if you were to buy individually.

It is our responsibility to clarify that even though these products will help you get rid of mould, it will still come back if you neglect the maintenance needed to have a mould-free environment.

Below are some extra tips for maintaining a mould-free environment.

Mould maintenance at home

After using our mould solutions to get rid of mould, the most important step in preventing its return is sufficient ventilation. This can be done in a few ways including but not limited to:

  • If living in a house, open windows downstairs and upstairs for around 20 minutes a day. The same applies to a flat or bungalow, open windows so there is airflow.
  • Address any leaks, spillage or condensation you find immediately
  • Do not use a radiator to dry clothes if there is no ventilation

Helping you remove mould

We at I-Sells endeavour to make sure our customers have all the information they need before making the choice to invest in our mould solutions. Be sure to visit our blog page to gain knowledge on the wide array of factors and issues surrounding ventilation, mould, condensation, and much more.

We hope to have helped you understand the importance of ventilation whilst also helping you understand what causes mould in bedrooms.

We understand you may have more questions concerning mould control, please do not hesitate to contact us for more information with regard to any queries you may have. If you’d like to send us an email, click here. For other contact options, see below:

Call us on 020 8463 9696

Visit us at our showroom:


Monday – Friday: 8:00am to 17:30pm
Saturday: 9:00am to 12:00pm
Sunday: Closed

15 St John’s Parade
DA14 6ES
United Kingdom

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