I am renovating a caravan and bought the Decor 8 Beige Java Marble Mosiac Tiles to use them for the kitchen splashback. Since the existing splashback is laminate, I have read that you can't attach tiles to it as the glue won't stick to that surface. I bought some plywood and used a Davco brand of tile adhesive for stone to attach the tiles to that, then my plan was to glue and screw the tiled ply to the walls. The adhesive just cracked and the tiles fell off. I have since read to attach the tiles to fibro first but am concerned about the extra weight. Any advice on the minimum depth of fibro to use and which tile adhesive is the best or does anybody know of any glue I could use so that I can attach the tiles directly to the laminate. As it's for a caravan, I would have to use something flexible.