Wet/damp between wall and floor

[elistill]

Hi, Im renovating my house and I've chipped the plaster off the internal walls and chipped down the concrete floor so that I can add a layer of insulation on the floor, I'm going to self level the floor then add the insulation panels. But I've ran into an issue, along the floor to wall corners are slightly wet/damp, the same with the bricks in the floor where the doorway is. What should I do about this?

 

[Wayners]

Is that the dpc I can see in the first picture?
Anything under dpc will be damp.
You should have plastic dpm under that concrete floor and up to dpm at the edges.

Outside 2 courses of bricks above ground to the dpc.

Looks like water is getting in under dpc with nothing on the inside to create a barrier

 

[elistill]

You're correct, dpc under the bricks.
Correct with the rest too, is there anything I can do to create a barrier between the dpc and the concrete without breaking up the whole floor?

 

[j_bodman]

Sounds like you might have some damp coming through the floor or walls. Before laying insulation, it's worth checking if you have a proper damp-proof membrane (DPM) in place. You might need to apply a liquid DPM or tanking slurry to the walls and floor to prevent moisture from coming through. Also, make sure there's good ventilation in the space to help with drying.

 

[JohnD]

How old is the house?

How old is the floor?

Does the floor have a DPM? If if is a replacement floor it may have been laid to hide damp.

Are the damp patches identical throughout the house, or worse in particular places?

The quality of the concrete looks extreme bad. Do you know a reason for that?