Bathroom flooring and sub flooring help needed

[Ahmiccc]

Hi Helpers,

 

im installing Wet UFH throuhgought entire house and done the 3 bedroom floors now next step is the bathroom and im looking to see what the subfloor should be pre tiles.

 

So my set up is on the top floors and i have joists so im running insulation between joists then spreader plates nad pipes going through my plan is 18mm chipboard, then a 6mm cement board then tiles on top, mainly to stop tiles from cracking. but i was wondering is this a good idea or whats the best to do ? for the UFH aswell as not having the floor tiles crack.

 

Thanks in advance for your advice

Edited September 10, 2022 by Ahmiccc

[Roundtuit]

Try this: