by rosebery »
Tue Mar 03, 2009 12:00 am
Ceramic tiles or vinyl tiles?
If your tiler is recommending hardboard for ceramic then you had better get yourself a new tiler. If its vinyl tiles it should be 6 mm ply, if its vinyl sheet then hardboard will be OK.
You need a very stable base for ceramic tiles. I would not tile directly over chipboard in any event and irrespective of whether you lose 0.5 inch or not you should overboard with minimum 12mm ply if the existing floor is to remain. Sounds to me like your optimum solution is to rip out the chipboard and the old floorboards and replace with 18 or 25mm ply.
Cheers