Tiling Advice

IrlMonk

Hi,
I was going to tile a bathroom floor and wall and am looking for advice please.

First the floor, initially I was going to put down Marine ply onto the floorboards prior to tiling but noticed on Rightpricetiles website that there are sheets 1200x600mm 'NO MORE PLY' is what they are called and only 6mm thick at 10 euro per sheet.
Has anyone used these sheets before?

The wall tiles, I was going to use Tanking paint to seal the walls prior to tiling but was wondering if this is sufficient?

Thanks

whizbang

Not sure if thats a good price. Thats €40 for an 8 x 4 (old school!). I wonder if its strong enough for floors at 6mm ?

Dont be caught up in the Tanking hype. Tiles are waterproof.

IrlMonk

whizbang wrote: »

Not sure if thats a good price. Thats €40 for an 8 x 4 (old school!). I wonder if its strong enough for floors at 6mm ?

Dont be caught up in the Tanking hype. Tiles are waterproof.

Cheers ;-)
Yea €40 is steep and your comment about it being strong enough at 6mm is a good point as I was going to lay it on top of floorboards!!!
The Marine ply is 18mm plus the tiles, leaves a bit of a step!

Your comment on tanking is also a good point. I was just trying to make the area as water tight as possible.
Hmmmmm

GreeBo

6mm is very flexible almost not worth it.
you can get WBP that is usually cheaper than marine ply, also 18mm is overkill imo.

If tiles are so waterproof, why do you need marine ply over regular ply?

Dont rely on tiles and grout being waterproof, is it for a shower or a bath?

I coated the entire shower area in my ensuite with a flexible waterproof coating, then used a cut to size rubber shower tray seal (aqua strap type) to seal the tray to the wall. You then tile over this right down to the trayand dont need that horrible trim crap that just gathers mold and looks yuck.

With this solution my shower enclosure is waterproof before the tiles are in place so no worries ever about leaks and rotting/mouldy plasterboard.

Id do the same for a bath if I was doing a full bathroom.

whizbang

Greebo , did you have any issues with the tiles not sticking to the wall?

GreeBo

whizbang wrote: »

Greebo , did you have any issues with the tiles not sticking to the wall?

nah I used a thistlebond type product over the entire area to give a good key for the tiles.

Tiles are 12mm 300x600 porcelain so heavy buggers, no issues with them holding.

actually now that I think of it, the walls were crap so covered them in 6mm ply to give a flat surface first (then waterproofed and thistlebonded)
belt and braces approach for me

IrlMonk

GreeBo wrote: »

6mm is very flexible almost not worth it.
you can get WBP that is usually cheaper than marine ply, also 18mm is overkill imo.

What thickness does WBP sheets come in?

If tiles are so waterproof, why do you need marine ply over regular ply?

Maybe to eliminate movement in the sheets beneath the tiles from moisture!

IrlMonk

Hi Greebo,
Thanks for the info ;-)
What would you recommend for prepping the walls in a Bath/shower area? The walls have an emulsion coating on them at the moment. I thought the tanking paint was an easy solution.

For tiling the floor I will put down the WBP sheets 12mm if available, 18mm is too much plus the tiles will make a step of 30mm

GreeBo

IrlMonk wrote: »

What thickness does WBP sheets come in?


Maybe to eliminate movement in the sheets beneath the tiles from moisture!

you can get it in various, I think I used 12mm.


What moisture though? If the tiles are waterproof I thought there wouldnt be any?

The ply is used to provide a more rigid (and flat) base for tiling.
Even using wbp or marine ply, you really dont want water getting past the tiles onto the wood, its not going to dry under the tiles and will eventually lift them or at least crack the grout and then you get a mess.

GreeBo

IrlMonk wrote: »

Hi Greebo,
Thanks for the info ;-)
What would you recommend for prepping the walls in a Bath/shower area? The walls have an emulsion coating on them at the moment. I thought the tanking paint was an easy solution.

For tiling the floor I will put down the WBP sheets 12mm if available, 18mm is too much plus the tiles will make a step of 30mm

I used half a saddle board to bridge the gap between the tiles and the carpet in the next room, I think I had to raise the saddle board 5mm or so to get a nice flat joint.

I used this BAL kit in the ensuite shower. It has the WP1 coating and the bath/shower tray seal.

IrlMonk

GreeBo wrote: »

I used this BAL kit in the ensuite shower. It has the WP1 coating and the bath/shower tray seal.

Can I apply that BAL waterproof kit onto the WBP sheets on the floor and the emulsion painted walls around the shower/Bath?
Is this applied with a paintbrush?

GreeBo

IrlMonk wrote: »

Can I apply that BAL waterproof kit onto the WBP sheets on the floor and the emulsion painted walls around the shower/Bath?
Is this applied with a paintbrush?

youd have to check the technical spec, but it can pretty much be applied to anything, though Id worry about applying it (or tiles for that matter) directly to layers of crap, the danger is that the crap delaminates and your tiles are stuck to paint thats not stuck to the wall..


you can use a brush or a roller, I used an old float for the walls and a brush for the awkward bits as it seemed easier...its like honey...goopy (technical term!)

it can go on the floor also, would be ideal for a wetroom with a floor drain.
On the floor you really need to make sure you are not using porous tiles and that you are using waterproof grout. Otherwise the water will just sit between the waterproofing and the tiles with no where to go (still better than sitting on a wooden floor though)

basically use a bath mat!

IrlMonk

Cheers for all that info ;-)
I think the emulsion paint on the walls might be a issue.
Hmmm.
Would a rough sanding set up a good base for the waterproof goo?

IrlMonk

Does anyone know if it would be okay to use OSB sheeting underneath Bondmaster tanking kit?
The reason I ask is because I have some left over and wanted to use it up