ᐅ Shower Trench Drains and Sanitary Fixtures – Selection and Installation

Created on: 28 Dec 2017 12:54
F
fabi1896
Hello everyone,

Soon, the sanitary fixtures will be installed in our new build.
Among other things, we have two walk-in showers that are designed to be flush with the floor.
We already have a tiler who will install the sloped screed.
However, he says that, due to warranty reasons, he will not install the shower channels nor connect them to the drain.

We are still considering whether to have our construction company handle this, depending on your feedback, as the following questions have come up for us:

- Difficulty level? I’m not inexperienced with DIY, but I don’t want any leaks that would require retiling the entire area.

- Shower channel: Our construction company prefers to sell us a very expensive channel, but we found options online costing about one-tenth of that with very good reviews. Has anyone had experience with this? What should we pay attention to?

- Installation height of the shower channel: Adjustable heights are available.
We have a floor build-up of 17cm (7 inches) next to the shower area (screed, underfloor heating, etc.). Would an adjustable channel with a height range of 10.5–14.5cm (4–5.7 inches) be suitable for this?

- Fixing the channels: From what I’ve seen, some are fastened to the floor slab while others are secured with the screed. Is that correct? Does anyone have experience with this?

- Do you have any general comments, ideas, or tips?

Thank you in advance for your replies!

Best regards,
Fabian
F
fabi1896
30 Dec 2017 18:39
Thanks for the reply!

But now I have everything I need.
- Construction membrane as a foil on the concrete slab
- Edge insulation strips (15cm (6 inch) polystyrene strips, fixed with appropriate adhesive)
- 8cm (3 inch) thick XPS insulation boards
(and another layer of the construction membrane on top)
- HT pipes (including 45° elbows)
and the 145mm (6 inch) high shower drains are also ordered.
(The reviews (23 times 5 stars) are good.)

...and then the tiler can come!
wrobel31 Dec 2017 11:02
Hello

I will secure the drain on the insulation.

An alternative with low risk of damage would be a mineral cast shower tray.
The installation height is about 30 mm (1.2 inches). Plan the drain within the floor construction and then bond the tray onto the screed.


Olli
D
Domski
31 Dec 2017 18:32
The shower tray can also be installed flush with the tiles, but based on my own DIY experience, I wouldn’t recommend doing this for your first shower. Otherwise, nothing beats Wedi boards, which are also available in the same quality from other manufacturers.