query re thickness of ply before tiling

ballykev

Hi, we just getting few renovations done to our own house prior to selling ing bathroom floors etc, we got a price for tiling but ruler was saying ply needs to b putvdown first on, old styled tongued and grooved flooring. Wat would normal thickness of thus ply b would 6mm b enough ?

sydthebeat

ballykev wrote: »

Hi, we just getting few renovations done to our own house prior to selling ing bathroom floors etc, we got a price for tiling but ruler was saying ply needs to b putvdown first on, old styled tongued and grooved flooring. Wat would normal thickness of thus ply b would 6mm b enough ?

thread moved.

no. 18mm ply would be better (to be sure, to be sure)

marine ply if you can stretch the budget.

650gs

If you are taking up the floorboards then 18mm but as you said its to go on top of the boards it will have to be 6mm unless you want a step into the bathroom that everyone will fall over.
Just put the screws 100mm apart and it should be fine

Outkast_IRE

Dont fancy the 6mm ply myself, too much room for movement on it no matter how well its scrwed down in my opinion.
Would prefer the 18mm myself and most of the tilers i work with insist on it.

North West

Hi
The first thing you have to look at is floor heights.The heavier plywood 18mm will lift your finished tiled floor up to approx 18mm ply+ 14 mm tile =32 mm.
I used 9mm wbp ply + tile, which left my floor height that I could use a standard door saddle at entrance. Worked out perfect.
NW

landcrzr

I have used 6mm ply on my own bathroom floor but the tiles were not too big and I used the correct adhesive and grout. So far no problems and that was 6 years ago.

smellyfinger

Avoid using ply if possible as most ply is not suitable as it is probably coming from china. Get a fibre cement board in either 6 or 9 mm and fix it to the floor and tile over. You'll be glad you did it this way.

mick121

6mm wbp ply is what you need.it should be screwed down at about 4inch centers.the screws should be 25mm long.18mm floorboard +6mm ply =25mm.this is to make sure you dont hit any pipes that might have been notched into joists rather than drilled through then joist.You may also use 25mm ring shank nails at similar spacing.Make sure ply is w.b.p as it can handle the moisture in the adhesive.You can also use flexable adhesive and grout to allow for small movement.

liveandnetural

have a look its a better road to go
http://tiles.ie/shop/tanking-kits/tile-backer-board-cement-backer-board/?gclid=CIPSu8a5mLYCFY-K4QodKHsAkA
http://www.youtube.com/watch?v=bPRQ9EtFh-8