CertainTeed’s gypsum GlasRoc Tile Backer and GlasRoc Tile Backer Type X panels feature a moisture-resistant core with engineered fiberglass faces, making them ideal for use behind tiles in rooms subject to moisture and high humidity. GlasRoc Tile Backer cuts and snaps like standard gypsum panels and weighs less than standard cement backer boards, according to CertainTeed. The 4-foot-by-8-foot panels are available in 1/2- and 5/8-inch thicknesses. GlasRoc Tile Backer Type X (5/8 inch only) features a core formulated for use in UL and ULC fire resistance–rated designs. Contact a distributor for pricing.

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