Floor tiling up to or on top of shower tray ?

[malctoy]

Hi

Been suffering leaks on and off for year thru the surrounded tiled area of my old and smaller ceramic shower tray.

I'm now in the process of installing a new Mira 900mm square shower tray in our shower area that has 3 walls and 'drying/entrance area' from where you step into the shower tray.

I am renewing the floor tiles in the drying/entrance area and wonder if:

1: Should the tiled drying area be exactly the same height as the top of the shower tray and if so, is it recommended to 'overlap' the top of the shower tray with the floor tiles ?
or
Butt up directly to the edge of the tray or leave a gap for silicon ?

2: Or would it be advisable for the shower tray to sit slightly higher or slightly lower than the drying/entrance area ?

I ask this as in the Mira instructions for wall tiles onto the 3 upstands, it says leave a 3mm gap from the bottom of the tile and the tray body and fill this gap with silicon. Sadly Mira don't suggest what is recommended with floor tiles.....

There is no glass door into the shower and prefer to leave it 'walk-in' without one.

Appreciate any advice folks.

[m3 fitter]

use knauf aquapanel 12.55mm cement board as opposed to ply as it gives you the rigidity of 3/4" ply and is water resistant, also tank 1 metre from the shower tray with a liquid tanking or schluter kerdi tanking membrane, run the tiles flush with the tray, not on top of, as there will be different movement on each substrate, and also you will have to trim the side of the floor tiles if not flush as i doubt you will start full tile from the tray, might be an idea to tank the walls as you are renewing the tiling...

http://www.schluter.co.uk/produkt.aspx? ... g=funktion
http://www.aquapanel.com/