Prepping a painted wooden floor boards

[Paul R Cox]

Hi,
I think I have two options here but I thought I'd run it by you chaps as I may be overlooking something.
I can either sand the paint off and apply a decoupling membrane or ply-line the whole thing.
Any suggestions greatly appreciated.

 

[widler]

6mm hardie, glued and screwed then either tile straight on top of hardie or if u want to ditra,put on top of hardie then tile (as long as floor is solid) 🙂

 

[Ajax123]

only thing i can add to wilder is before gluing the hardi down give he paint floor a going over with a wire brush to scratch it and offer a better adhesive key

 

[Qwerty]

As all above. There are a few different types of backer board you can use, but all have similar fixing methods

 

[SJPurdy]

As above. When using Hardie it is the screws that mechanically fix the boards down; the cement based addy underneath fills any voids/unevenness in the subfloor-boards ( which obviously must be rigid, loadbearing etc) so the lack of adhesion of/to the paint layer should not be a problem.

 

[Paul R Cox]

Thank you all for your comments. Sounds like a better option.

 

[Kia tiling]

Defo, 6mm cement board glued n screwed...