Aquapanel advice for crumbly corners

Rich H

New Member
The corners have crumbled away on some aquapanel boards attached to stud walls for en suite- see pic.
Do they need replacing? or repair? if so how would you do it
I was then going to fill corners with flexible adhesive and knauf to reinforce them, and then apply a suitable tanking solution to belt and braces seal it - which is the most suitable for aquapanel
many thanks
Aquapanel advice for crumbly corners
Looks like the boards have been f**k**g karate chopped no wonder there’s a gap where the meet
You are going to put tiles on it all anyway and the tile edges are going into those corners - fill the gap with tile adhesive…