Tiling Onto Floorboards

[Willdcfc]

Hi, I want to tile my bathroom floor, it's only a small bathroom and when i went to the Tile shop they recommended Hardier BackBoard. They said for me to use a flexible adhesive and screw this down to the floorbaords then tile on top etc...

I'm just abit aprehensive about putting and adhesive directly onto my floorboards and ruining them? I've seen various stuff online either saying screw some plywood down first or just use ply or just screw backboard down...

there seems to be no definitive answer??

Can someone please help.

Regards

 

[p4ulo]

Hi.
You have had the correct advice from the Tile Shop for using Hardie.
The use of the tile adhesive between the boards and the floor boards is to help fill any voids or gaps between the two layers, its not meant to "glue" them together, you must screw the two together to form the "mechanical bond". Its a well proven and very popular method of fixing tiles to floorboard floors. I personally wouldn't use anything else.
Good luck.

 

[Willdcfc]

Ok thankyou! Will the adhesive not ruin the floor boards?

Regards

 

[p4ulo]

Ok thankyou! Will the adhesive not ruin the floor boards?

Regards

Not ruin, but it will stick well and truly so will be a pain to get it off again. However, you are tiling over the floor boards, so I wouldn't worry about them too much!

 

[Willdcfc]

Spot on mate! Thanks 🙂

 

[Flintstone]

another alternative, which i use and many others do, is No More Ply.
Its a similar to hardie backer, you screw it down, and glue it with some strong glue in a tube which does stick like buggery but probably wouldnt make a mess of the floor boards when you take it up one day

 

[Willdcfc]

Yeah thankyou anyway but already bought the backboard so might aswell use that. How thick should the adhesive be between the floorboards and backboard?? Just a nice layer im guessing? Would you let it set before screwing it in or at the same time??

 

[Ian]

Yeah thankyou anyway but already bought the backboard so might aswell use that. How thick should the adhesive be between the floorboards and backboard?? Just a nice layer im guessing? Would you let it set before screwing it in or at the same time??

Use a 6mm square notched trowel of the boards are fairly decent and flat, maybe go to 8mm if the floor is a bit uneven. Always screw when the adhesive is still wet so it compresses down, I tend to have a little walk over the boards before screwing just to really set the board into the adhesive.