Replastered Kitchen Damp Patching Appearing Damp can be a major issue in the home. Find answers to questions or post your own here.

[johnson_briggs]

We have recently had the kitchen re-plastered. After drying out we noticed these patches after it had rained. These then dried out but several days later a few marks reappeared on a dry day.

Before replastering, the plaster was quite bobbly and had come away from the wall hence why it was re-plastered.

Can anyone advise if this is due to damp? The wall is an external wall though there are no obvious holes or pointing issues on the other side.

Thanks

[stoneyboy]

Hi,
These look very much like soot stains coming through from an old chimney.
If your outside wall is single skin you need to do something to correct this.if it's a cavity wall, dry lining and replastering will sort the problem.
Regards S.