If you’ve ever tiled a caravan shower or campervan kitchen and watched the grout crack a few months later, you’ll know the pain. It doesn’t matter how careful you are, how expensive the adhesive was, or how many YouTube tutorials you watched — tiles just aren’t designed for mobile environments . And to be clear: It’s not your workmanship. It’s the tiles. Ceramic tiles are rigid. Vehicles flex. Boats twist. Caravans vibrate. The moment the structure moves, tiles and grout try