ditra on backer board - Tile Advice

[trev]

hi guys
I'm looking to tile my upstairs bathroom floor and was wondering if i need to use ditra matting if I'm putting bakker board down? any guidance if appreciated.

 

[GoneGuy]

What tiles are you using? Ufh?

 

[trev]

What tiles are you using? Ufh?

300x600 polished Porcelain. no UFH

 

[GoneGuy]

Ditra is used for lateral movement and cement backer board is for deflection.
So with the tiles your using will only only need cement board

 

[trev]

tha

Ditra is used for lateral movement and cement backer board is for deflection.
So with the tiles your using will only only need cement board

Thank you much appreciated