Sloping floor on a wet room

[stef86]

Hi
Got a job on 2moz started it today.Its a medical adaptation basically doing a walk in shower with a formed tray,usually the floors are alright however the one am at is sloping quite badly away from the tray and i have to fix this.I intend to lift up the chipboard and replace with 18mm ply and use 9mm,6mm and 4mm to gain a better run anyone got any useful tips for saving time etc or anything to look out for that I may come across .
Any ideas or thoughts would be much appreciated !
Thanks

 

[Richard C]

Use WBP ply only not standard ply; what's going over it, waterproof floor covering or tiles? Is it a finished tray or a tray former that also needs tiling?