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How to Prevent Mould in Winter

Updated: Jan 27

Cork is no stranger to wet winters, and all this damp raises the likelihood for mould to develop in your home - especially if you live in an older building or historic home! Preventing mould from getting a footing your home is key, so read our best tips for preventing mould below:


Watch our video above for tips on preventing mould, or read the advice below.

Here are some tips on how to prevent mould from beginning to grow and spreading:


💧Tip 1: Avoid Condensation as Much as Possible Through a Combination of Heating and Ventilation

  • When moist air is cooled by contact with cold surfaces (think mirrors, windows, and walls), it condenses into water droplets on that surface

  • You can often see this happen on the windows of bedrooms in the morning, or on windows and mirrors in bathrooms after a shower


💧Tip 2: Always Use Your Extraction Fan When Cooking and Showering/Bathing

  • Turn your bathroom extractor fan on before  you start showering, not after, and keep it on for at least 15 minutes after you finish

  • This will help get rid of the moist air rather than letting it build up and stay stagnant


💧Tip 3: Keep Bathroom Doors Closed When Showering/Bathing, and Open Windows After

  • Keeping your bathroom door closed helps keep the moisture from travelling to your other rooms, especially if you have an ensuite

  • Opening your windows after will allow fresh air to circulate and ventilate the room - stagnate air can increase your likelihood of mould


💧Tip 4: Don't Dry Clothes on Your Radiators or a Clothes Horse

  • Where possible, try to get clothes mostly dry before using a clothes horse, and open a window for ventilation if you do have to use one


💧Tip 5: Open Your Windows and/or Trickle Vents

  • Opening your windows or trickle vents (small vents in your windows or walls) for a little while every day for ventilation/fresh air - an hour should do the trick, but if you are just opening your trickle vents and not your windows you may need to keep them open a bit longer


💧Tip 6: Keep Your Home Warm!

  • Warm air can hold more moisture than cold air and keeping the internals of your house warm will help prevent the drastic differences between air and surface temperatures that cause condensation


💧Tip 7: Wipe Away Condensation

  • If you notice condensation, be sure to wipe it dry with a towel straight away

  • It is likely to appear on your windows in your bathroom and your bedroom, and possibly on any mirrors and even potentially on your walls

  • Check your bedroom windows every morning when you wake up and be sure to open your curtains and blinds so they do not trap in any moisture


💧Tip 8: Promptly Clean Any Mould That Appears

A bottle of Astonish brand Mould & Mildew Blaster cleaning spray; this is our recommended cleaner for getting rid of mould if it starts to grow in your home.
Mould may start to appear as small black dots, clean it as soon as possible with this spray (or a similar one) once you notice it beginning to grow.

  • If mould does to start to grow in any room in your house, do not let it get worse - spray it as soon as possible with an anti-mould spray before wiping away

  • We highly recommend Astonish Mould & Mildew Blaster, which you can get for around €1.75 from shops like EuroGiant and Mr. Price!

  • Check any areas prone to condensation - mould often starts along window frames or the window reveal (the sides of the wall that the window is set into); it will often look like small black dots at first

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