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M

mickp

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I am about to embark on tile my bathroom floor and looking for a bit of advice. I have tiled a couple of floors before but always onto concrete and have gathered that upstairs floors need some different considerations. The house was built in 2013. The floor is solid and even. I am not 100% sure of what the floor is actually boarded with. It seems to be chipboard but with some kind of coating. I am wondering if I can tile straight onto this or whether or not I need to use backer board first. I would prefer not to as I could do without the additional thickness but above all I want to do the best possible job and have no issues with it. I feel like I could be answering my own question there. I was thinking to use keraflex maxi s1 https://www.tilersforums.com/forums/tile-adhesive/ to allow for some additional movement of the floor. Is this necessary?

I have searched a bit on the forum and it seems that most people are using backer boards in the bathroom when going onto ply or chipboard. The thing that is making me doubt if I need to is the coating on my floor (see below). I Plan to use 12mm thick quartz tiles and the bathroom is 4sqm.

Thanks in advance

Mick
floor.jpg
 
OP
O

One Day

You can't tile direct onto coated chipboard. It's only a small area so I'd glue and screw 6mm hardibacker down, then Tile away merrily with any decent s1 https://www.tilersforums.com/forums/tile-adhesive/ which grabs your fancy.
 
OP
M

mickp

Thanks both for the replies. I was pretty much coming to that same conclusion but it is nice to hear it from someone who actually knows. Backer board it is then.

Would I still need to use the s1 https://www.tilersforums.com/forums/tile-adhesive/ or would standard keraflex be better. I'm staying away from rapid set this time as my skills are not up to working fast. I threw as much away as I used on my last job (30sqm) and spent forever cleaning my tools :(

Thanks again

Mick
 
OP
M

mickp

Sorry impish didn't see your reply before I posted. That answers that question then. S1 it is.

Many thanks
 
OP
O

One Day

Still use an s1. Floor will still move so better with a flexible https://www.tilersforums.com/forums/tile-adhesive/. Keraflex maxi is s1 i think. (I'm not a mapei user)
 
OP
O

On one

As others have said it looks like a waterproofed P5 chipboard possible Egger Request Rejected
Now it says you can tile directly onto it,whether you should or not?????? depends on how well it was fitted and joist spacings and so on.
If it was up to me I would overboard with Hardiebacker
 
OP
L

LM

I 'HAVE' to tile on this a lot, all consequences allowed for by email confirmation. It's Wyrock, prime it with Ardex P4 or the like and tile it with a good rubber crumb https://www.tilersforums.com/forums/tile-adhesive/, in ten years I've never had a failure
 
OP
O

One Day

I 'HAVE' to tile on this a lot, all consequences allowed for by email confirmation. It's Wyrock, prime it with Ardex P4 or the like and tile it with a good rubber crumb https://www.tilersforums.com/forums/tile-adhesive/, in ten years I've never had a failure
but op isn't a pro. I'd never suggest a rubber crumb s2 to a diyer!
 
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