S
Stef
Hi Stef, Ive never done the course myself and I know Karndean will try to get out of the guarantee if not installed correctly.
That's why on the odd occasion I have to install it, Karndean for example, I take pics of over boarding with wbp ply and using there skim coat along with there correct adhesive. The bathroom company I subby for is a recommended supplier of karndean & Amtico and are happy with my installations.
However this is probably not the route you should take. Try to get on a course if you find yourself asked to fit this on a regular basis.
Cheers TB, I saw that before about their guarantees.
I levelled a kitchen floor ready for tiling & then the customer decided they were going for Karndean, the floor was bang on & they still came in & out a skim of level on top for the guarantee.