S
Ste450
Surely if at least 70%/80% coverage is achieved, then the method is irrelevant? People keep saying they achieve 100% coverage, but time and time again when I'm ripping of old tiles I pretty much never see a evidence if a solid bed. There's nothing on the back of the tile and there is only a comb of adhesive left on the wall. It's like the tile had only been slightly touching the adhesive, hanging on for dear life. I prefer to spotfix on larger tiles, and by this I mean on a 600/300 tile, I'd use 18 spots which when compressed, spreads out to achieve a good coverage. I also find that this gives better adhesion, especially to plasterboard and you can actually level the tile instead of relying on a perfect wall which is rare, especially if its a timber stud wall. I only use top quality cement based adhesives as well, usually rapid setting. I recently ripped out a friends bathroom where the tiles were spot fixed and it took me two days to rip out down to the brick. The tiles were ridiculously solid and so was most of the old render.