In our bathroom we already have a plywood floor. I have ordered a UFH kit, can I lay this kit straight onto the plywood and then tile straight over the top of the UFH or do I have to have some sort of insulation? I also know I need UFH adhesive, not sure if i'm missing anything else. Thanks, Ryan
Check installation instructions of UFH, Warmup warranty is void if you don’t use their insulation boards. It’s also best to fully encapsulate the cables in SLC before tiling and make sure the “hot tail” is covered too as warranty will be void also. You will need a S1 adhesive to tile over.