ᐅ Damp Spot Near the Ceiling Under the Shower?

Hello everyone,

unfortunately, I recently discovered a strange spot on the wall in the ground floor of our relatively new single-family house (built in 2018) – it looks like moisture to me.

Right above that spot is the bathroom, specifically the shower floor drain.

The drain channel is installed flush with the floor. I don’t see any damp areas in the joints of the shower wall tiles. However, in the drain channel there is no joint between the channel and the tiled wall:

I already mentioned this during construction, and I was told it was normal and that there was some kind of waterproofing behind it.

Does anyone have information on this?

Thanks

DReffects schrieb:

Hello everyone,

I’ve just noticed a strange spot on the wall of the ground floor in my relatively new single-family house (built in 2018) – it looks like moisture to me.
Right above it is the bathroom, specifically the shower floor drain.

The drain channel is installed flush with the floor. I don’t see any damp spots in the grout of the shower’s rear wall. However, there is no joint between the channel and the tile wall in the drain channel area:

I already mentioned this during construction, and was told that this is normal and that there is some kind of waterproofing behind it.

DReffects schrieb:

Hello everyone,

I’ve just noticed a strange spot on the wall of the ground floor in my relatively new single-family house (built in 2018) – it looks like moisture to me.
Right above it is the bathroom, specifically the shower floor drain.

The drain channel is installed flush with the floor. I don’t see any damp spots in the grout of the shower’s rear wall. However, there is no joint between the channel and the tile wall in the drain channel area:

I already mentioned this during construction, and was told that this is normal and that there is some kind of waterproofing behind it.

Does anyone have any information on this?

Thank you

Diagnosing from a distance without local knowledge is always a bit of a gamble. But I agree, it does look like moisture damage. There are moisture meters available, which you can even rent if you don’t want to buy one. Clearly, the shower needs a silicone joint! Ideally, there is waterproofing, and it should be properly installed. But water shouldn’t be getting there at all. Take a closer look and consult a local plumber or bathroom specialist—they might be able to help for a small fee.

@Vicky Pedia Thank you for your assessment!

Yeah, man, I wish I had done more. Where are you from?

Vicky Pedia schrieb:
Yes, man, I wish I had done more. Where are you from?

Thank you! The center of Lower Bavaria