Tile Underlayment on Concrete: When You Need It and How to Prepare the Slab
Introduction Tile can be bonded directly to a concrete slab when the slab is sound, clean, adequately flat for the tile, within the selected system’s moisture limit, and accepted by the mortar and tile manufacturers. Underlayment is not automatically required. Use an underlayment or membrane only when it solves a documented need: crack isolation, uncoupling, […]
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