Floor tiles on a chipboard floor

[jactac]

I recently removed old floor tiles off a chipboard floor, for some reason the came up far too easy for my likeing, I used the correct flexable adhesive but did not prime the floor in advance, so should I prime before I re-lay new tiles and what should I use to prime the chipboard floor with and also what adhesive would you recommend.
Cheers,.
Kerry.

[warmadmax]

from my reading, chipboard is one of the worst sub straits to try tiling onto,
also if the wood wasn't primed, it will suck the water out of the adhesive faster than intended,
drying the adhesive out too quick for it to bond properly.

other main cause of tiles coming up on wood floors is down to flexing or "deflection",
if the floor bows under the weight of someone working on it,
then it will steadily rock the tiles away from the wood, breaking the bond.

read that a full glass of water in the center of the floor then walk round the perimiter,
if it spills water then it's not rigid enough.

if it is rigid enough, priming and using a suitable adhesive or overboarding with 6mm concrete tile backer board down should stop it failing in future.

if it's not then, i'm not sure what the guys will suggest but overboarding with ply to increase rigidity might be one way, it will raise the floor slightly.
i'm personally taking my floor up, adding wood noggins every foot between joists then laying 18mm ply back down.

hopefully floor level should match the carpeted landing for me.

[DTWCeramics]

What side of the chipboard is it?

If it's the green side, have fun!

several methods around this,

1: sand the board thoroughly, and use a rapid set adhesive with hi-flex additive. Not all products are suited to this, and we only carry one product in stock for this, which is the Granfix Rapid Set & Granfix Plus Liquid.

2: Ditra Matting or any product counterpart - use Ardex AF200 to stick to the wood, put the matting on and go to town

3: overboard: Use a Marmox/Webi/Jackoboard etc and screw this down every 6 inches to the floor, then either run a layer of SLC over this or tile directly.



If it's the normal side of the chipboard, use any wood targeted adhesive with a suited primer. (Ardex 7001 & P51 primer comes to mind)

HTH

Cheers

[haveagohero]

Never tile to chipboard, i would lift the chipboard, put noggins between the joists to strengthen the floor then replace the chipboard with 18mm wbp ply, overboard that with 6mm backer boards then tile on this. Backer boards are not designed to strengthen a floor just to waterproof it and give a good substrate to tile to as some WBP ply can start to weep resin which then causes the tiles to fail. DItra and the like are uncouplig membranes and these are so that if the substrate underneath expands and cotracts the matting stays in the same place with the tiles on top of it "uncoupling" the tiles from the substrate but in most bathrooms the size of the floor does not warrant the use of a matting. Hope this helps

[DTWCeramics]

Never tile to chipboard, i would lift the chipboard, put noggins between the joists to strengthen the floor then replace the chipboard with 18mm wbp ply, overboard that with 6mm backer boards then tile on this. Backer boards are not designed to strengthen a floor just to waterproof it and give a good substrate to tile to as some WBP ply can start to weep resin which then causes the tiles to fail. DItra and the like are uncouplig membranes and these are so that if the substrate underneath expands and cotracts the matting stays in the same place with the tiles on top of it "uncoupling" the tiles from the substrate but in most bathrooms the size of the floor does not warrant the use of a matting. Hope this helps

Disagree with this statement, there's nothing wrong with tiling to chipboard. Just need to use the suitable adhesive & primer (as explained in my above post)

Also, with 18mm ply no need to overboard with backerboard, just stick to it with the correct adhesive & primer situations.

Cheers

[haveagohero]

Look mate, i'm not being funny but i run my own company doing this sort of work day in day out so i do know what i'm talking about and there is what you can get away with and then there is the right way to do things.

There is a forum specifically for tiling: ************ i would have a read on there about some of the advice you are giving

[haveagohero]

type in tilers forums in google, top result