Do You Need Cement Backer Board In Walls In Bathrooms?


If your tile will not be directly exposed to a spray of water, a specialized backer board isn’t required. … In bathrooms, use water-resistant drywall for all non-shower areas. You can install a bathroom backsplash onto this water-resistant drywall. There is no need for a cement backer board in these areas.


Greenboard (MR drywall) in bathrooms (requires 16" oc ceiling framing) and backer board on tiled surfaces. In areas with uncontrolled moisture or wicking moisture (such as sub-grade concrete walls), non-paper faced drywall is wise. There’s already too much cement in a typical home and no need to use it for wall board as well.


Frequently Asked Questions

Is cement Backerboard necessary?

Whenever you're laying tile on a wood subfloor, you need to first install cement backerboard to prevent leaks and water damage that could harm your flooring and the structure of your home. Unlike wood or drywall sub-surfaces, cement backerboard will not rot, warp or grow mold and mildew when exposed to water.

Does shower wall tile need backer board?

You don't need to use a backer board in the entire bathroom, just in the wet shower area. Choose a backer board that's the same thickness as the drywall so you have a seamless transition from one to the other.

Which is better bathroom walls green board or cement board?

Green board is moisture resistant, not waterproof. Cement board can be purchased either as water resistant or waterproof. Cement board is the preferred material of choice in high moisture areas. It very heavy but very durable.

Why do you need a backer board in a bathroom?

The inner walls of modern homes may not always be strong enough to hold up a full tile surface, as might be laid in a bathroom, and so adding a backer board greatly increases the chances of getting your tiles to hold in position for a long time.

Is it OK to put cement board under tile?

But a successful project relies just as much on the material you choose to install underneath your tile or stone, even if you won’t see it after completion. Protecting from water damage is the key to enjoying a finished kitchen or bathroom for decades to come.

When is it necessary to put backer board on drywall?

To ensure our content is always up-to-date with current information, best practices, and professional advice, articles are routinely reviewed by industry experts with years of hands-on experience. If you have drywall, then installing backer board before adding tiles is usually seen as a necessity.

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