ᐅ Damp spots on exterior masonry

Hello everyone,

Certain spots on the exterior masonry of our house are consistently damp. Recently, these wet areas have also become visible on the inside walls. They do dry out during extended dry periods but always reappear when it is humid or rainy. The flat roof is already insulated and fully covered, with only the parapet still missing. I’m not sure whether the issue is related to the roof or the masonry. Do you have any advice on what might be causing this?

We plan to start with the exterior rendering soon, but I believe action is needed before that.

I appreciate any feedback or tips.

Best regards,
Michael

What does the structural engineer/architect/construction supervisor/tradesperson say???

Is the point above that the roof drainage outlet?

When was the roof covered? ...

guckuck2 schrieb:

Is the point above the roof the drainage outlet?

To pick this up again.
The roof itself seems to be sealed already, at least with a temporary seal?
The blocks on the wall plate look like drainage points to me, meaning the roof slope leads there or, if no slope has been created yet, this is currently the weak spot where water can pool on the roof. Then the water runs through and down the facade.
If this is correct, the conclusion is: a temporary problem, but before applying the exterior plaster, a (temporary) drainage system must be installed, otherwise it will damage the plaster.

P.S.: Is a parapet wall going to be built on top of the wall plate? Or do you only mean the missing flashing?

Somewhere the water has to drain to.
In the last picture, it is clearly visible that the lowest point is exactly there at the "T-insulation." Water collects there and then runs down the masonry…