Rising damp - bathroom

[AlR]

Hello everyone,

I'm redecorating my bathroom and after removing the tiles and bath have discovered what seems to be a rising damp problem. The tiles fell off without much effort, which I believe is due to the damp rising up the wall and affecting the adhesive.

I've attached a picture to this thread. This was taken about 2 weeks after everything was removed and the room left to air. Both of the walls featured are internal - the one on the left to the internal hall way and the one at the top of the picture to the enclosed communal hallway.

It's a ground floor flat.

Is the problem coming from the foundations?

Any help on what the cause could be, and any possible solutions would be much appreciated.

Thank you

 

[cjard]

Rising damp is a myth, though it certainly looks as though your wall floor joint is being affected by external water. Could do with a few more pics of the other side of those walls

 

[vinn]

Given that the walls are internal its possible that the cause is rising damp - have you carefully examined the other sides of the walls in question for signs of damp - probe any skirtings?
Is the whole ground floor of the house a solid floor?

You have gypsum plaster and it will all have to be hacked off and replaced with a 3:1 sand & lime mix. Remove the wood fixings.
When you are back to bare bricks then post photos please.

 

[AlR]

Since that photo was taken the damp patches have reduced more. Photo attached. It took about another 2 weeks to get this stage, so about a month in total since the bath and tiles were removed.

Seems like it's not a major damp problem until the ventilation is removed.

 

[vinn]

Its irrelevant - I've suggested above what you should do.