ᐅ Underfloor heating leaking? Is moisture rising up the wall?

We had a similar issue on the ground floor. It was the outdoor water tap located right on the exterior wall of the room that allowed water to pass between the screed and the walls.

ypg schrieb:

We had a similar issue on the ground floor. The outdoor faucet was located right on the exterior wall of the room, and it allowed water to seep between the screed and the walls.

The original poster mentions all four walls.

@OP: It would be helpful if all questions were answered and more details about the situation were provided (house type, floor plan, location of the washing machine, routing of the water pipes, waterproof concrete tank / tanking, high groundwater level, when the issue was first noticed, only on one wall or multiple, where exactly it started, etc.).

driver55 schrieb:

The original poster is talking about all four walls.

Yes, in our case it was on all four walls: water got under the screed and rose up all four walls.

Why hasn't the original poster said anything more? They read everything but don’t respond. 🙁

Why wait for half a year at all? And cracks look different from “water damage.”

Sorry for the late reply. I tried to create a sketch here. The basement wall of Basement 2 is set back slightly, which I marked with the red line, as well as the door. It started at point 1, where we had a large picture standing, so only minor changes were noticed there. At point 2, there have been drywall panels since April because I’m finishing Basement 1 and took a break due to the warm temperatures. These panels completely covered the view, and I only saw it today after moving them. Points 1 and 2 look like cracks, but they are not; instead, the plaster is bulging out from the wall, as you can see in the pictures. Point 3 has been visible since yesterday, and you can see that the other walls show no signs of cracking but rather indications that the plaster might also be pushing out, which you can also clearly see in the photo with the stairs, where it is slightly visible. At point 5, our washing machine and dryer are located. The water pipes go directly there, and the drain is also in the corner. Point 4 is where the hot water tank is, and the pipes for the underfloor heating and other water connections to the house run there. I hope this gives you a better insight.

Best regards
TT

Turn off all water outlets and check the meter, or take two photos a few minutes apart. We had a leak in the water pipe with water damage about a year ago… you could see it on the meter, the small gear turned very slowly.