Tiling on first floor wooden floor. What the best way?

I have to start tiling my upstairs bathroom and got opposite opinion between sticking hardiebaker or using ditra matting before applying the floor tile.

What your opinion on this and what would be the best reliable way?

Thanks

 

What’s the substrate? Are you going on floorboards or have you ripped it back to joists and fitted ply?

Either way you want to make sure your joists are solid, and fit noggins if necessary. I would usually then overboard in at least 18mm ply, fixed at 150mm centres. Then glue and screw 6mm cement boards after having primed the ply first. The cement board joints then need to be taped which an alkali resistant tape bed in some tile adhesive. Pointless using ditra in that situation as it does nothing to strengthen the floor

 

Got floor boards. Okay for the tile board on floor. With what you paint floor boards and how you apply glue for the tile board? Dot or spread like installing a tile?

 

Ok well make sure the floorboards are well screwed down, obviously being careful of pipes/ cables.

I would apply some sbr primer was to the floorboards first, then use tile adhesive to bed the boards down with (full bed) using a 6/8mm trowel. These then need to be screwed at 150 centres to the floor boards.

 

I have just ply on top of my floorboards in my bathroom. Never had any problems with the tiles lifting.