OSB Prep options - self levelling compounds?

[Daveyd]

Cool thanks everyone for the help. Gonna rasp and rough sand down the ridge, overlay with 6mm cement board then glue down membrane with PVA before tiling with flexible adhesive.

I can't see any reason not to glue the membrane with PVA. Is there any reason?

 

[Flintstone]

Don't use pva Dave it has no place in tiling. Stick the membrane down with tile adhesive providing it's actually a suitable membrane..

 

[J Sid]

Cool thanks everyone for the help. Gonna rasp and rough sand down the ridge, overlay with 6mm cement board then glue down membrane with PVA before tiling with flexible adhesive.

I can't see any reason not to glue the membrane with PVA. Is there any reason?

what make of membrane are you using and what is this pva product you want to stick it down with ?