no ply on floor to be tiled

[DERBER]

Ya may get away with 12mm ply, only if the t&g is in good nick, otherwise walk, and save ya reputation.....

 

[Wylie]

Get yourself a sheet of 6mm ply, rest it lengthwise edge on the floor, hold the top edge as far apart as possible and try bending it with your knee in the middle of the board and see how far it moves!

you might make a hoop with it.my thinking was and since thats whats used on top of the chip board floors here,if the tongue and groove is a heavy floor would the 6mm not do the same job to masking the joints?

 

[doug boardley]

if you put a set square over a piece of t&g Wylie see if you can see daylight, that's a measure of the possible deflection imo

 

[DERBER]

I would only ever lay 6mm ply onto a chipboard floor and it would have to be a small area at that.

glue and screw 12mm ply down across the run of the t&g floor, screwing edges of board onto ever length of T&g, then every 250mm acros the ply.

 

[grumpygrouter]

I won't tile on 6mm ply. I think it give potentially more problems than tiling straight on to chipboard with "proper" adhesive. Where's "here"?

 

[Perry]

tell him to stick em down with Silicon that wont raise the floor lol

 

[kilty55]

dont pci do something called pesoplast or something like that,,only a few mill thick but once its down it strengthens the floor?

 

[White Room]

I have heard of it but don't know if a couple mil would strenghten a floor

 

[Wylie]

I would only ever lay 6mm ply onto a chipboard floor and it would have to be a small area at that.
Iv'e seen it done with 6mm and screwed every 200mm on chip and 150 on tongue and grove

glue and screw 12mm ply down across the run of the t&g floor, screwing edges of board onto ever length of T&g, then every 250mm acros the ply.

12 mm seems reasonable

 

[Wylie]

I won't tile on 6mm ply. I think it give potentially more problems than tiling straight on to chipboard with "proper" adhesive.

I'll check this one out thanks

Where's "here"?[/quote]
N Ireland