Does bath rim go underneath tilebacker/Aquapanel?

[Draughtsman]

Does aquapanel go above the bath with the bath rim slid underneath it, or does it extend below the rim with the bath pushed up to it (plus sealant)?

Asking because existing bath rim is 45mm wide but new bath side rim is 90mm wide, which seems a lot.

Thank you.

 

[TeaAndBiscuits]

I was wondering the same thing as I'll be doing the same job shortly and I reckon I'll have the bath rim under the panel:

1 - You can get a nice big wide silicone seal between the edge of the panel and the flat of the bath, as well as the bead in the corner
2 - You can install the panels after the bath which makes it easier to get the bath into position (if it's against the wall on 3 sides)
3 - Again if it's bounded by 3 walls, you have a bit more leeway with regards to wall spacing as you have 2x panel thickness available to hide any bath-wall gap

So yeah I think that's how I'll do it.