Is this rising damp?

[joefinan]

I recently painted the hallway and it's as if there's a patch around the radiator that hasn't completely dried. I never noticed it before I painted (we moved into the house about six months ago).

There's no damp smell or condensation anywhere, but is rising damp the only explanation?!

Untitled

• joefinan
• 25 Jun 2011
• 1

 

[joe-90]

Where do you pipes run? Looks like s leak to me.

 

[joefinan]

I thought about that so have just put the heating on - the whole radiator heats up so I'm guessing it's not a leak?

The pipes run under the floor.

 

[joe-90]

What kind of boiler is it? Combi or traditional?

It could be a corroded pipe leaking into the concrete floor. Pull the carpet back and see if the concrete is damp. Or is there a leaky gutter on the other side of the wall. That is too much water to be something like rising damp.

 

[Growler]

Odd.
Buy a cheap damp meter.

 

[wallcoatingsbloke]

hi. it is hard to tell from the photo, but does the damp patch exist ONLY around the rad? I mean, does it go along the length of the wall, or only where the rad is?

It does look like a leaking pipe somewhere, but how old are the rads? Check the rad is not getting hot, and spraying the wall in a fine mist via a tiny hole. (which is repairable)