ᐅ Tiled shower floor – sooner or later problems caused by the silicone seal?

Created on: 11 Feb 2021 17:09
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annab377
Hello everyone,

If I want to tile the floor of my shower area, won’t I sooner or later (likely after more than 10 years) encounter problems at the following spot:
the silicone joint between the outer floor tile and the first vertical wall tile next to it? This joint will surely be filled with silicone or acrylic, and sooner or later there will be a leak there. Then water will run—without me noticing much—under the tiles while showering.

Isn’t this a major drawback of tiled shower areas?

Thanks and best regards,
annab377
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knalltüte
12 Feb 2021 11:18
annab377 schrieb:

I don’t understand that either. I can just place the shower tray directly on the screed, right? Sure, it would then be 2-3cm (1 inch) higher than the tiles, but the underfloor heating should still work?
That’s possible, our plumber suggested the same. But then I wouldn’t be able to clean the floor properly or easily move water into the shower area. That’s why it should be level with the floor.
And don’t worry so much. The plumber will usually install it correctly (unless they happen to be a butcher 😉)
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knalltüte
12 Feb 2021 11:21
[QUOTE="Nordlys, post: 471482, member: 32530"]
That’s not always the case. I know some people who have underfloor heating installed beneath tiled showers (to keep their feet warm while showering), just not too close to the drain to prevent it from drying out (and causing odors).
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knalltüte
12 Feb 2021 11:22
ypg schrieb:

I can confirm that. Many neighbors have a white residue. We don’t, even though our tiles are matte and uneven: we squeegee the walls and floor after showering.

Just choose tiles in a “lime color” – problem solved :p
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pagoni2020
12 Feb 2021 11:23
And then...? With this version, don’t you end up without a silicone joint if you do it this way?

In the end, you have these types of seals or similar ones everywhere in the house and in life. At the dishwasher, the heating system, and so on. And everywhere they can become brittle over time and then simply need to be replaced.

I’m copying my previously unanswered question again:
pagoni2020 schrieb:

I already asked above. What is your solution/alternative for this, which elsewhere is not seen as a problem?
Musketier12 Feb 2021 11:38
We have a level-access shower tray, and of course, the joint between the shower tray and the vertical tile is sealed with silicone. While I have already renewed many other silicone joints in the house because they were cracked, this joint is still in good condition.

What tended to crack in our shower were the horizontal joints between the vertical tiles. According to the tiler, this is due to the constant cycle of wetting and rapid drying as well as the tight tile installation. However, he said this is not an issue because the waterproofing layer beneath is intact.
Tolentino12 Feb 2021 11:44
Yes, the main point to take away is: it doesn’t matter what you use, as long as the waterproofing is done properly. And that is mandatory regardless of what is applied on top!