Found Damp on Wall

[lucasc]

Hi there,

I have started removing wallpaper from a wall at the rear of my house and have found damp patches across the bottom, about 1 foot from the floor. Is there a DIY fix for the problem without having to get professionals in?

Thanks for any help!

 

[PrenticeBoyofDerry]

We need to know what is causing the damp?
What room is it?
Is it an external wall?
Is it cold to touch?
Has it turned a colour?
Is it single leaf/skin wall or cavity?
Is the outside wall rendered or pointed?
Can you see a DPC about 150mm up the outside brickwork?
Does the damp start at floor level and go up a foot or just a damp patch a foot up?

 

[Static]

Find the cause..
Eliminate the cause..
Repair the damage..
Drink tea..

 

[ajrobb]

Try keeping the room warm and well ventilated for a year without any large furniture against the wall. If the problem goes away, it is probably condensation.

 

[lucasc]

Thanks for the replies guys.

The damp starts about a foot up from the floor. I can see a DPC and the wall is pointed. From what I know its a cavity wall!

The patch is cold to touch and isn't a different colour, just darker than the wall?

It's a back room that used to be a bedroom but I'm making it into a dining room.

I'm not sure what the cause could be!

Static, I'll be doing your fourth step continuously!

 

[PrenticeBoyofDerry]

Is the cavity filled with insulation?
When did it start?
Do you dry clothes in the room?
Any furnature against the wall?
Do you keep the room ventilated?