ᐅ Interior wall damp from rain

Hello dear homebuilders,
I’m new here and signed up because we have a problem. We moved into our new house in August and had an issue just before Christmas. Due to weeks of rain combined with wind and storms, our interior walls on the weather-exposed side are damp at floor level, about 10-15 cm (4-6 inches) high. The construction company says this is caused by the ventilation slots in the brickwork; they have now sealed them and have gone on vacation until January 12th.

Is it possible that rainwater gets through the ventilation slots and reaches the interior walls? I can hardly imagine that.

I would appreciate your help/opinion.
Thank you very much

You probably mean the inside of the exterior walls? An interior wall would be bounded by rooms on both sides.

In my opinion, this definitely should not be the case, as there is most likely an issue with the wall waterproofing. Retrofitting the ventilation slots with a seal prevents their originally intended function of ventilating behind the brick cladding, which in my view only conceals a more serious construction defect.

No, I unfortunately mean the interior wall, specifically the living room wall, where a noticeable edge can now be seen. It is the same with my parents-in-law (same builder).

Hello.

OlliD. schrieb:

No, I actually mean the interior wall, specifically the living room wall, where a clear edge is visible. It’s the same with my in-laws (same builder).

Did "someone" perhaps skip the waterproofing above the first row of bricks...?

Best regards, Bauexperte

If only I knew. But it would be problematic if it was forgotten or skipped in 3 houses (it also happened at the neighbor’s).

At a less visible spot, carefully remove some of the brick cladding to try and determine where the moisture is coming from and how it is spreading. Don’t worry about the hole that will be left in the brick. From the way this sounds, that hole will likely be the least of the damages...