Blog>Questions>What are causing random round wet patches of paint?
Last updated: 23 February 2024
What are causing random round wet patches of paint?
Round wet patches of paint aren’t just unsightly, they can signal underlying problems. They can also put your home and its occupants at risk. Read this guide if you need to know 'What are causing random round wet patches of paint?'
If you're looking for the answer to 'What are causing random round wet patches of paint?', you're not alone.
When mysterious wet patches suddenly appear on your walls or ceilings, it's at the very least, annoying. At the very worst, your home is telling you there's a problem.
Diagnosing the cause of these round wet patches is the first step to fixing the problem. It could also save you costly repairs down the line.
We've compiled a few culprits of these random round-wet patches of paint.
But to get the most accurate diagnosis and repair, consider a professional damp investigation.
See the tradespeople we've checked and recommend for your job
Condensation
Random round wet patches are often the result of condensation.
Condensation forms because warm, moist air meets cold walls and ceilings. Water droplets on the surface of your walls can lead to these damp spots.
Poorly ventilated areas like kitchens and bathrooms are a favourite for random round wet patches of paint. When steam inevitably accumulates in this area, it causes patches of condensation.
Damp penetration
Are you noticing sudden wet patches of paint on your walls after heavy downpours? If so, your home could suffer water ingress or penetrating damp.
Some of the most common causes include;
Overflowing gutters
Damaged roofs
Problems with a home's structure
Damaged or aged pointing
Damaged brickwork
Poorly installed or old windows
Leaky pipes (from old or poor plumbing)
You'd be surprised at how even minor leaks can cause water to seep into painted walls or ceilings.
Water stains and bubbling or bulging paint could be a sign that you have a leak.
In this case, y ou'll need a local plumber or roofer, depending on where the leak is coming from.
Paint choices
Your choice of paint could be keeping your walls wet. Some paints are better equipped to handle damp or cold rooms and moisture absorption.
Thinking of redecorating? It could be worth trying a higher-quality paint with better moisture resistance.
Applying too thickly or unevenly can also lead to damp paint patches that never dry.
Apply coats evenly and allow them to dry between coats for a smooth and dry finish.
What next?
If damp is the cause of your walls' wet patches, it can lead to structural issues.
Doors and window frames can rot. Your roof rafters and floor joists may deteriorate. Your paint can bubble and peel.
But random round wet patches of paint are usually a manageable problem.
To avoid any hefty repairs, get to the bottom of your round wet patches. If you've exhausted all efforts and cannot find the cause, arranging for a damp investigation is a good idea.
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