Build a durable, moisture-resistant tile foundation with the XPS Waterproof Tile Backer Board. Featuring a 100% waterproof XPS foam core and cement-coated surface, it's lightweight, mold-resistant, and ideal for showers, bathrooms, walls, floors, and other wet-area tile installations. Buy now: https://balanceflooring.ca/pro....ducts/xps-waterproof