Pigletjohn - help with damp

[deathbollywood]

What could be the causes and rectification of these damp problems please? one is the corner of an upstairs bedroom, so guttering/leaking roof maybe? the damage to the wall seems bad. how could it be put right? the other pic is also an upstairs bedroom. Could it be something to do with the windows? Any thoughts appreciated

I know you’re after pigletjohn but do you have any pics of the outside? I had a similar problem caused by a blocked drain. Might help to know what proximity to rainwater goods there is

it's very wet, and seems to be coming down the wall, in a wide spread, from the junction with the ceiling. So most likely a roofing fault. Take some photos of the outside please, showing the roof, gutter and outside wall. Go in the loft and look for signs of damp. identify any pipes or tanks nearby (especually overflow pipes). Roofing leaks can run down the sloping timbers before dripping off, so might not be directly above the wet patch.

Pull back any wet insulation to enable drying-out.

If you are in the habit of hanging wet washing over the radiator it might be condensation.

thanks. any thoughts on the second picture? that's a different bedroom. Could the windows need replacing?

@deathbollywood

thanks. any thoughts on the second picture? that's a different bedroom. Could the windows need replacing?

Usually old / knackered windows don’t cause those sort of issues. More likely to be an issue with the guttering or edges of the roof.

the one showing the windowsill? Not clear. Tie the curtains out of the way and stand back for a pic of the whole wall please, and one of the outside.

It's possible rainwater is entering round the replacement window. The frame itself (should) have been constructed with drainage channels so water runs outside and drips off the sill.

Please measure the thickness of the wall at a door or window opening, and provide a pic showing the pattern of bricks.

The wall be will be either about 9 inches thick or about 13 inches, mostly depending on age.