Laying floor tiles on MDF boarding?

Question

We had a flood a couple of weeks ago (leaking shower)

Didnt think there was a problem with the laminate flooring in the utility room - directly below where the shower was, but when the assessors came round they ripped it up to view it!

Anyway - the flooring wa laid on 22mm MDF board, which whilst it looks a bit grubby, doesnt seem to have suffered. It is completely dry and no warping or anything.

having gone off laminat, have now decided to tile the area instead.

I appreciate the potential problem with expansion, but the tiling shop I asked it said it wouldnt be a problem and said I just needed to use a special adhesive that would allow for movement.

OK, but it got me thinking.... does that mean the tiles are not really bonding to the boards primed with UPVA?

Anyone know?

Ta

tuffty26 · Accepted Answer

i'm not a tile expert but i think the bonding they will be refering towill bond the tiles together but it will prob have the same affect assilicone which will allow the tiles to move with the boards,you won'tnotice the movement as it will only be  i say i'm not a tilermyself but we have a couple of tilers at my work and by the sound of itthey use the same bonding.if you think about it it makes sense becauseas silicone dries it still seems soft but sticks really well soalthough the tiles will be able to move you won't be physicaly able tomove them and the bonding will be exteamly strong.hope this is of help to you.andyguv wrote:

Grunff · Answer

The tiles will bond to the PVA primed MDF fine, all a flexible adhesive means is that the adhesive has a certain amount of elasticity when set, allowing it to take up small movements without cracking. Always important to use flexible tile adhesive when tiling over wood/ply/mdf.

Chris Bacon · Answer

I really wouldn't, unless you can get flexible tiles. Corks!Flexible tiles, wow! Dows a ceramic tile flex?

Laying floor tiles on MDF boarding?

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