ᐅ Mounting a wash basin faucet on a tiled "Wedi building board"

Created on: 1 Jun 2017 08:11
G
Grobi82
G
Grobi82
1 Jun 2017 08:11
Hello everyone,

I have a question for the tilers, craftsmen, and/or plumbing experts among you.

Our bathroom vanity cabinet will be custom-built and will have the following structure:

- Supports on the right, left, and in the middle made of aerated concrete (10 cm thick) (4 inches)
- A 10 cm thick (4 inches) construction board (e.g., Wedi) will serve as the "shelf"
- The entire structure will then be tiled, and two Ikea base cabinets (Godmorgon series) will be fitted into it.

Now to my question:

A countertop washbasin will be placed on the shelf, along with an exposed mixer tap (specifically: Hansgrohe PuraVida single-lever washbasin mixer 240). My site manager is concerned that the tap may not have enough permanent support on the construction board and expects it to start loosening or wobbling after a short time. I don’t share this concern because the tap will be mounted onto the tiles. Would it help if the underside of the construction board, at the point where the tap is mounted, is also tiled?

I would appreciate your assessment and thoughts on this project. Perhaps someone has even had concrete experience with this before?

Thanks in advance and best regards
Grobi
tomtom791 Jun 2017 10:36
I have only briefly read wedi’s installation instructions, but it seems BL was right. Reinforcements need to be installed. Why don’t they use something else?
G
Grobi82
1 Jun 2017 12:52
Hi Tom,

Thank you for your feedback. The suggested solution using the plywood with a phenolic film surface doesn’t directly help me because it can’t be tiled, but it would of course provide enough stability for the fixture. The same applies to a granite countertop as a washbasin... that would also be an option, but my preference is for the tiled version.

Maybe someone else has an idea or relevant experience...
K
Knallkörper
2 Jun 2017 08:43
Neither the Wedi board nor the tile is suitable as a "load-bearing part" for the fixture. You'll need to come up with another solution. To be honest, your entire construction sounds complicated, specialized, prone to errors, and expensive. Is it really worth it?