Ideal tile backing surface.

[joe.natcho]

Hello.. I'm just about to redo my bathroom..
I'm going to fit a shower above the new bath this means concealing the pipe work within the wall & then re-tileing.
The walls surrounding the bath are old plaster on timber strips..
I want to renew these & i've been told to do this in 12mm ply,
But i'm not sure what ply to use...

If i use a standard soft wood shuttering ply, will this cause damp issues, Or should i use a WBP ply?
But woulld the WBP ply be difficult to adhere the tiles to.. Being water resistant...

Or should i just use a far eastern ply (hardwood)?

Any advice would be much appreciated....

Joe

 

[Softus]

The walls surrounding the bath are old plaster on timber strips..
I want to renew these & i've been told to do this in 12mm ply

I wouldn't use less than 18mm.

If i use a standard soft wood shuttering ply, will this cause damp issues

Yes.

Or should i use a WBP ply?

Yes.

But woulld the WBP ply be difficult to adhere the tiles to.

No. Not if you buy adhesive for tiling onto wood.

Or should i just use a far eastern ply (hardwood)?

No.

Any advice would be much appreciated.

Use of ply, or other backing, is partly personal preference. Some people swear by plasterboard, which is cheap and readily accepts normal adhesive, but I've seen too many damp-damaged plasterboards and doesn't remain fully intact if you want to pull of tiles later on.

For a small area the cost WBP ply is bearable, IMHO.

Another option is Aquapanal.

 

[mountford]

Far walls I find the best substrate to be plasterboard cheap easy to fix then tank it before you tile it.

 

[mountford]

If you are worried about safe weights the substrate that can take the most weightis the wedi board or hardi backer board.

 

[Softus]

Far walls I find the best substrate to be plasterboard cheap easy to fix then tank it before you tile it.

Er, the best substrate of all is sand/cement on brick/block.

 

[mountford]

Far walls I find the best substrate to be plasterboard cheap easy to fix then tank it before you tile it.

Er, the best substrate of all is sand/cement on brick/block.

And how much adhesive do you use on block work twicw as much sand and cemnt can cause crazing on tiles as it sucks too much water out of your adhesive, I just find plaster board flatter smoother and quicker to put up.

 

[joe.natcho]

I wouldn't use less than 18mm.

Thanks for prompt reply...

WBP it is then, cost is not a problem if it means a good lasting finish..

Why is 18 mm best...
Is it Just in case of bowing or warping?

Oh yeh, any advice on a good tile adhesive to use on WBP ply?

 

[mountford]

It depends on what sort of tile how big natural/ceramic?

 

[lancenotalot]

I would use the aquapanel,stronger than plasterboard and no need for tanking,will take most adhesives unlike wpb,is cut with a knife like plasterboard

 

[Softus]

Er, the best substrate of all is sand/cement on brick/block.

And how much adhesive do you use on block work

None - I wouldn't tile onto blockwork. Would you?

sand and cemnt can cause crazing on tiles as it sucks too much water out of your adhesive

Not when you do the job properly.

I just find plaster board flatter smoother and quicker to put up.

I'm very pleased for you.

 

[Softus]

Why is 18 mm best...
Is it Just in case of bowing or warping?

Yes - with tiling, rigidity is everything.

Oh yeh, any advice on a good tile adhesive to use on WBP ply?

I use Nicobond "for wood", or this: .

 

[gcol]

Plasterboard and tanking is they way to go. Cheap, fast and reliable.

 

[Top Tiler]

I would use the aquapanel,stronger than plasterboard and no need for tanking,will take most adhesives unlike wpb,is cut with a knife like plasterboard

As above