I've just started looking at these. There is a huge range of options and prices. I've seen Impey mentioned here before but are they really worth the almost double price tag?
I could see more need for quality/rigidity on a timber floor but on to concrete it's not got to do much?
The last two wet rooms I did I made my own formers but frankly I don't have the time.
Weyroc was ply'd with 12mm and then Amtico'd.
As I didn't know at the time that the ply was so thick I set that tray straight on the pozi's.
Yup. Iirc the Impey tray is 22mm but when you bed it down with a super-generous lashing of Sikaflex EBT it gains a couple of mm, which is usually fine if your either over boarding 18mm deck with 9mm ply or 22mm deck with 4 or 6mm ply ( thinner ones glued and screwed ). As this was quite an adverse install I decided to let the Amtico gu