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How to Prevent Mould Over Winter

How to Prevent Mould Over Winter

This is a comprehensive guide on preventing mould during winter. It explains the causes of mould, such as condensation from poor ventilation, missing insulation, and inadequate heating. The guide offers practical tips to reduce mould growth, including minimising moisture production, improving ventilation, and maintaining warmth.

It also provides specific advice for bathroom care, gutter maintenance, and wall or ceiling panel upkeep, highlighting the importance of cleaning, ventilation, and insulation to effectively tackle mould. Finally, it emphasises the benefits of waterproof wall panels and encourages contacting National Plastics for expert advice.

Mould is both unsightly and unhygienic. If left, it can cause black marks and create an unhealthy environment. But why does mould develop? And how can we prevent it? This blog aims to find out.

What are the Causes of Mould Over Winter?

When moist air encounters a cool surface, such as a wall, window, or mirror, the moisture condenses into water droplets. This is more commonly known as condensation. It is this condensation that creates mould.

In our homes, condensation can occur for several reasons. The top three are:

  • Inadequate ventilation – this can lead to a build-up of excess moisture.
  • Missing insulation – if insulation is missing or incorrectly installed it can create cool spots in your home.
  • Lack of or inadequate heating.

How to Prevent Mould Growth Over Winter

There are two main ways to prevent mould developing:

  • Try and produce as little moist air as possible – for example, drying clothes outside, keeping lids on pans whilst cooking, and reducing shower times.
  • Make sure any moist air can leave your home – this can be achieved by opening windows, using extractor fans, and installing vents.

Top Tips for Bathroom Care Over Winter

Bathrooms create more moist air than any other room in your home, due to the daily use of showers, baths, and taps. Because of this, the chance of mould developing is high. However, there are a few things you can do to minimise the risk:

  • Install ventilation in the form of a fan or vent to ensure moisture can leave the room.
  • If you do not have sufficient ventilation, then always open a window whilst you are in the bath or shower to prevent excess moisture from building up.
  • Try and dry towels outside if you can.
  • Wipe away any excess moisture from surfaces to help prevent the creation of mould.
  • Keep your bathroom warm to help reduce condensation. Underfloor heating, heated towel rails, and radiators will all help to keep your bathroom warm and inviting.

Top Tips for Guttering Care Over Winter

It’s not just inside your home that can be affected by mould. Guttering is also a place where mould can develop. However, keeping on top of guttering care and maintenance can help to prevent this:

  • Keep your guttering clear of debris and dirt, which can trap moisture underneath.
  • Install a gutter balloon and correct drainage to prevent leaves and debris from getting into the downpipe.
  • Regularly check your guttering for damage, which will help to prevent any leaks or water getting where it should not be.
  • Regularly clean your guttering to keep it free from dirt and any existing mould.

Top Tips for Wall Panel and Ceiling Panel Care Over Winter

Wall and ceiling panels are 100% waterproof, which makes them ideal for rooms with high levels of moisture, such as a bathroom or kitchen. This, combined with their lack of grout, reduces the chance of mould developing. However, there are a few things you can do to keep your wall and ceiling panels in tip-top condition:

  • To reduce condensation, wipe down your bathroom wall panels after a bath or a shower.
  • Ensure ventilation is correctly installed and used to help reduce the amount of condensation on your panels.
  • Ensure your room is well insulated underneath your wall panels.

National Plastics Product Care

We know the wall panels are the perfect partner for rooms with high levels of condensation. But don’t just take our word for it. View our range of wall panels and talk to our expert team about how to care for them. Simply call 0800 22 77 77 today.



National Plastics is a trading name of Specialist Building Products Limited, a wholly owned subsidiary of the Epwin Group Plc. Specialist Building Products Limited is registered in England & Wales. Company Registration number: 1268689. Registered Office: Friars Gate, 1011 Stratford Road, Shirley, Solihull, West Midlands B90 4BN. VAT Registration No. 864 4507 10