Tiling floor boards

[pintail120]

I have a bathroom with floor boards, tongue and groove, what is the acceptable procedure to tile this floor successfully?
any help will be truly greatful
thanks
Gavin

 

[Softus]

1. Screw down all floorboards (not just the loose ones).
2. Cover the entire area with WBP plywood, minimum thickness 12mm, screwed down.
3. Using adhesive suitable for tiling onto timber, tile the floor.

 

[pintail120]

1. Screw down all floorboards (not just the loose ones).
2. Cover the entire area with WBP plywood, minimum thickness 12mm, screwed down.
3. Using adhesive suitable for tiling onto timber, tile the floor.

thanks for your advice