10-28-2013, 05:57 AM
Protec panels have a mesh reinfoced cement surface, so would act as the tile backing board...you would need to adhere the tiles onto the cement surface & thinset is one of the methods (usually the most cost effective) but there are many other mastics & adhesives that can also be used...I have adhered larger tiles onto walls, but large tiles (depending on the tile weight/thickness, usually a foot or more) do need support while setting, and so doing very large tiles means having much more time, as each tile/row needs time to set before the next is adhered.
Reason? this is the nature of gravity at a certain tile size (mass to gravity) the adhesive quality of the mastic is overpowered by the gravitational pull, not the tiles fault!
If this is used in a wet area (like tub/shower) you should check to see if a vapor barrier is required... as moisture does pass through the grout lines to the mastic & backerboard (or in you question, protec panel)
Reason? this is the nature of gravity at a certain tile size (mass to gravity) the adhesive quality of the mastic is overpowered by the gravitational pull, not the tiles fault!
If this is used in a wet area (like tub/shower) you should check to see if a vapor barrier is required... as moisture does pass through the grout lines to the mastic & backerboard (or in you question, protec panel)