Follow these best practices for a reliable installation By John Koenig March 5, 2021
Glass mat gypsum backer board is a worthy alternative to cement-based panels, but still requires attention to detail to perform properly. | Photo: courtesy USG
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Although cement backer board is one of the most commonly used tile underlayments for wet-area walls, a high percentage of production builders have switched to glass mat gypsum board products, such as Georgia Pacific’s DensShield or CertainTeed’s Diamondback Tile Backer. Here’s why I think that’s a wise move, and provide some tips for correctly installing glass mat gypsum products.