Band of sticky plaster

Peterson 89

New Member
Hi, I have been steaming paper off of the bedroom wall recently exposing perfectly dry plaster...no problem. I go back to it in a couple of days and discover a damp sticky band about 15 inches wide running from floor to ceiling. Oddly follows exactly the line of a wallpaper strip. Scraped away a section of the affected plaster and found it to be dry beneath. Three days on its still there. So can anyone tell me what it is and how to deal with it. Been told it could be an existing damp problem that has reacted once the strip of wall paper was removed. Sounds plausible. Thanks.
 

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Secret damp is going to be the new rising damp[emoji854]


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Is that an internal wall?

If it's internal and there's no pipes, then you must have somehow steamed water into the plaster. Might be a bit of bonding or something there.

Leave it to dry for a few days and happen that'll be the end of it.
 
To me it looks like old chimney has been took out , 1920s ish building judging by the paints on the old painted bits
 
No. It could be dry and just some glue used to stick down the paper. I'm not convinced it water but a £10 damp meter say one way or another.
They are used to read the moisture content wood only and have nothing to do with damp in walls FYI.
 
Clearly that is a hollow wall and a previous occupant has chained his spouse/ lover/friend/ enemy up and walled them in....what you have there is all their bodily fluids that pooled after their slow agonising death, and that has been drawn up into the plaster.
Obvious really.......
 
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