Why is there internal damp on the top floor?

[limestonenoobie]

Ive got a hole on the exterior as seen in the pictures where the gas meter wire is coming through but is that really enough to cause this much damp? or is it water getting trapped in the render? guttering?

https://imgur.com/a/4OtusYy

downstairs is completely dry, just this corner upstairs thats absolutely soaking towards the skirtings.

I thought the guttering would be suspect however the top of the wall is completely dry, just the skirting area is where all the waters pooling, but downstairs its also dry.. Theres no piping behind that wall either.

 

[^woody^]

That's a classic condensation shape.

 

[limestonenoobie]

That's a classic condensation shape.

Oh thats interesting, it is a solid stone house and the ventilation in that room is quite poor, ill leave a window open to see if that helps. Thank you.

If that is the case i'll fit better ventilations too.

 

[limestonenoobie]

Anyone else got any opinions

 

[Jurassicspark]

Anyone else got any opinions

Yeah - reduce humidity.