It’s a very small sign that can easily be missed – but if you see it, it’s important to act quickly.
As the nights grow longer and colder here in the UK following the clock change, it’s crucial to keep your home as cosy as possible, often meaning windows are kept firmly shut to ward off the chill.
Whilst this does keep our homes toastier, it can also trap moisture inside, creating the ideal environment for hidden damp. If not addressed quickly, these minor signs can escalate into major issues, from mould growth and damaged plaster to peeling paintwork and potential health risks.
This is typically worse during winter, when home ventilation is more restricted.
According to specialists, there’s a very subtle sign that may appear on your walls indicating a potential damp or mould problem – and it’s something that’s easily overlooked, reports the Express.
“The tricky thing about hidden damp is that it often spreads quietly before you even notice it,” explained Allan Reid, Director at Art Windows and Doors.
“That faint shadow on your walls or the darkened edge of a curtain is usually the first warning. Moisture collects where warm indoor air meets cold glass, and if ventilation is poor, it can seep into walls, paintwork, and window frames.”
How to prevent damp and mould
Despite autumn and winter being prime time for damp and mould to creep in, there are a few simple measures homeowners can take to prevent the issue from spiralling out of control.
First, you should ensure you draw back your curtains completely each morning to inspect for mould or damp spots. Then, run your hand along window sills and frames; if they feel chilly or slightly wet, this could signal a potential problem.
It can also be beneficial to open your windows briefly each morning to allow fresh air to flow and clear overnight dampness. Even if that’s just for a few minutes, it can really help in balancing the humidity levels.
And property owners should also attempt to avoid drying washing indoors wherever feasible, as this releases substantial amounts of moisture into the atmosphere.
If you have no alternative, devices like dehumidifiers can help assist in extracting that dampness from the air and drying your washing faster, eliminating that musty mouldy odour too.
“All it takes is small, consistent steps to prevent damp from taking hold,” Allan added.
“A few minutes each morning to air your home, combined with careful monitoring of problem areas, can save hundreds of pounds in repairs and protect your property from winter damage.”
