Large-Format Tiles on Uneven Walls: How Flat Does the Surface Need to Be?
Large-format tiles need a particularly flat, stable substrate because their size makes even small wall irregularities much harder to accommodate. As a general benchmark, walls being tiled with adhesive should have no gaps greater than 3mm beneath a 2m straightedge. With very large tiles or panels, an even flatter surface may be required to achieve …
Read more