How to solve problem with wet room?

Hi Nigel, If the floor itself is wet I would make sure it is good and dry before laying any type of covering or tile overtop. If it does not completely dry before tiling you will potentially get a lot of mold. What is the floor made out of that you are covering?

Hi Nigel I hope this link helps you out, https://www.wetrooms-online.com/wetroom-help-and-guides/wet-room-flooring-types.html

No. The floor needs to be dry before tiling.

Not sure what you mean by black flooring other than the color of it. Its it stone, tile, vinyl, luxury vinyl flooring, vinyl tile, or concrete? Or none of those?

You probably can lay down tile, but be sure it is very dry as Recreated Designs advised. You can expect it to be a raised and that may create an issue with drainage. Adhesion might be another issue depending what is on the wet room floor.

https://www.thespruce.com/best-and-worst-floors-for-moisture-prone-rooms-1821646

I would bring in a professional and ask-pick their brains, get free information and estimates and take it from there.

Hi there! You can tile over other tile as long as the original flooring is in good shape. You might want to consider pouring a concrete leveling compound over the original flooring first though than you'll have a perfect base to put your new floor on top of!

Before putting down tile, you should lay cement board. It provides a moisture barrier and a surface to which the tile will adhere.

That said, I have known people who put tile down directly onto wood or other flooring. It just depends on if you want to take a chance that it won't adhere properly.

I would insulate with a moisture barrier first

I would not tile over something existing especially if the room is always wet, that’s a recipe for disaster and incredible expense. Your best best is to remove the existing floor, solve the wet issue, then start anew.

Remove the existing floor, use cement backer board, tile and then seal the grout. Bathrooms are wet all the time and they use tile in those.

Hi Nigel. When we bought our house 4 years ago we knew we wanted to change the flooring in our main bathroom, but budget was very tight. We installed peel-and-stick tiles on top of vinyl tiles. What a difference it made. The floor still looks great. My advice : start with clean surface, begin laying tiles in the center of the room, so that any necessary cuts will end up at the edges, if you use tile with grout, use sanded grout, unsanded grout is for walls, and make sure the current floor is completely dry before starting. Good luck Nigel.

Here's a post that might help you - https://wetroommaterials.com/blog/how-to-avoid-these-3-costly-wet-room-problems/

What is the black flooring made of? This might help you: https://www.youtube.com/watch?v=KfIhG4JUYdI

A wet room is a small room with a sloping floor that contains a toilet and a shower , rather than a shower pan, or shower doors or walls. They are generally tiled on the floor and walls. Wet rooms are more common in Europe and in Japan and much less common in North America.

https://www.apartmenttherapy.com/wet-rooms-have-advantages-over-traditional-bathrooms-252456

Here are a couple of examples:

It depends what type of floor covering you currently have?

If you have a wet room, then you certainly need to have waterproofing down before you start thinking about tiling.

Really you need either a paint-on tanking (waterproofing) kit, or if you can afford it a membrane tanking kit such as https://simplywetrooms.co.uk/wetroom/tanking-kits/orca-wet-room-tanking-kit/

The paint on tanking kits are a little cheaper, but they take time to paint and you have to make sure you've not missed anywhere, whereas a membrane, as long as it's fitted correctly, will be quicker to fit and you can tile on pretty much immediately.

Hi! I would definitely rip it out apply the best waterproof I can afford and then install new tile. That way you can fix any damage to the subfloor and use the right materials. Stay safe!,