i have to some times but its 40mm thick and i insist on ordinary chipboard not the green one lol to much wax and its also steel joists at 300 centers and i stick Pci pesalastic down first with timber flex 😛ete
I don't know where the Quote from 'frogeye' went about being a Public forum and not airing mistakes in public!
If no one made mistakes it would be a perfect world!
In 36 years I will have tiled on chipboard, PVA, thin plywood etc and everything else that was recommended and approved at that time!
I also remember when they put all soil pipes internal in blocks of flats and boarded them with ASBESTOS sheets!
thanks for the replies guys. I did suspect that many peeps do this as there are products on the market for tiling over chipboard. I realy just wanted to hear if it does work, from experienced tilers who have done it.