Hardie Board, WonderBoard and Durock are all classified as cement boards. These sheet goods are made with a mixture of Portland cement and sand instead of the powdery gypsum that’s used in drywall.

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Janine asks: I’m putting up a ceramic tile backsplash in my kitchen. Can I put the tile directly on the drywall, or do I have to tear it out and use a cement board? Danny Lipford: If you’re talking ...