![]() ![]() Also, You need one vapor barrier either behind it or over it. Ceramic tile laid over cement board is one of the most durable floor or wall surfaces you can install.ĭo you need to use RedGard over cement board? Grout is porous, sealing it won’t protect you. Can you tile right over cement board?Ĭement board forms a durable, stable base for tile, and it has no organic materials (unlike drywall, greenboard, or plywood) so it is not prone to mold, rot, shrinkage, or decomposition due to moisture. It is extremely hard and waterproof, meaning it will not deteriorate over time when exposed to water, making it ideal for use in high-traffic areas that are susceptible to the adverse effects of moisture. Attach the HardieBacker® Cement Board with HydroDefense™ Technology.Ĭan cement board be left exposed? Most brands of concrete backer-board consist of a fibrous reinforcement cement composition molded into sheets. Score and snap boards to required sizes and make necessary cutouts. Edges of the board parallel to framing must be supported by a structural framing member. 4.2 Discover How do you seal cement board in a shower?Ĭan you tile on either side of a cement board? As a general guideline, the rough side of the cement board should be up when using thinset or mortar, and the smooth side should be up when using tile mastic.īoards may be installed vertically or horizontally. ![]()
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