waterproofing when using a shower tray

Hi all,

I'm a little unsure on the waterproofing process when using a shower tray. I have rebated the wall studs and bottom plate to accept the shower tray. This allows for the villaboard to be run into the shower tray covering the tile lip.

This means the shower tray should be installed before the wall's villaboard is fixed. Should I waterproof the floor area, install the shower tray, install the villaboard then water proof the walls and overlap back onto the pre - waterproofed floor?

If i waterproof the floor, the trades will walk over the floor and probably ruin the waterproofing. Should I just waterproof under the shower tray area, install the tray, install the villaboard, then waterproof the remaining floor and walls?


Is there any other way I should do this?


Cheers,


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