wetroom floor with wedi - envelope the tiles still?

[macten]

Currently building wetroom with wedi gear. Floor tiles are 15x15 unglazed ceramic non slip (ugly!!)
Only done a handful of wetrooms and the floors have always been large format (so envelope cutting) or mosaics.
Should I still do what I normally do with bigger tiles and dry lay and mark falls from wedi tray to tile and envelope cut? Or will tiles that size just sort the falls out themselves over the grand scheme of things like mosaics?

Thanks

 

[LM]

If you mean the tiles are 150mm X 150mm then you'll still have to envelope them

 

[macten]

Cool - thought so.
Next question - Wedi tray and boards and they're 2 part tanking paste and sticky tape for joints and corners.
Would you guys prime it all first. I normally prime everything but there's no mention of primer on their tanking kit.

 

[Flintstone]

I don't think you need to prime over tanking

 

[LM]

You'd prime the substrate before you apply the tanking system, but you don't need to prime the cured tanking paste.

 

[macten]

I was never going to prime over the tanking. Just wanted to know if you guys prime wedi before tanking. No mention of it in their kit.

 

[Flintstone]

It wouldn't hurt

 

[White Room]

Wedi and others I don't prime, just give em a wipe over with a damp cloth if it looks dusty.

 

[macten]

If you mean the tiles are 150mm X 150mm then you'll still have to envelope them

Cheers Lee, apparently 100mmx100mm is the limit before you need to start cutting in the falls.
Got all the first fix and boarding done. Wedi trays are 40mm thick and he only wanted 20mm wedi over rest of floor so it's been a right pain battening and boarding between joists at the right height to get that to work.
All this money spent on a wetroom and these are the god awful floor tiles:

Feels like I'm tiling my local leisure centre changing rooms!

Gets worse - he's got 60x30 slate for the walls and he wants white grout! Managed to get him to compromise a bit and he's happy with silver grey (but that will still look white next to them) oh and he's having brickbond

 

[magga]

Can't see the picture?

Edit: can now!