Should you use green board or cement board in a shower?

Cement backer board such as Durock is best used for tile in highly wet applications such as shower stalls, with greenboard and other water-resistant drywall panels kept only to high-humidity areas. Greenboard’s paper facing alone does not inhibit mold growth. The facing must be treated with mold-resisting agents.

Do you need green board behind shower surround?

Paper-faced gypsum board will not prevent moisture penetration and should not be used in wet areas (BSC 2009a). Non-paper-faced fiber-reinforced gypsum board, moisture-resistant gypsum board, or “green board” products are also not recommended behind tub surrounds (BSC 2009a).

Can you use green board for shower walls?

Green board can be used for showers, but it must have a waterproof membrane installed on top of it to make it waterproof. It’s best to use waterproof board for shower walls instead of drywall. Use green board for ceilings and non-shower walls in your bathroom.

What kind of board do you put behind a shower?

cement board

In showers, the standard substrate is tile backer, also called cement board or cement backer board.

Do I need cement board for shower walls?

Shower walls must be backed with a waterproof backing board. Drywall is not an acceptable backer board. Even moisture-resistant drywall (green or blue varieties) will not hold up in showers. Use a true cement backer board, or try a shower backer board kit like this one.

Is Hardie backer board good for shower walls?

Cement board is a good, reliable backer board that works well on both floors and walls. Keep in mind that most tile setters err on the side of caution and brush a waterproofing membrane on top of cement board when it is in wet areas like showers or tub surrounds.

What is the best material to use behind shower walls?


We recommend acrylic as the best shower wall material. Acrylic is the best system to use for shower walls because it is the safest, least high maintenance, and easy to install, meaning your shower could be done in as little as one day.

What should I put around my shower walls?

Simply put, acrylic panels have the look and style of tiles but without the mold, moisture, and cracking problems. A completely non-porous and waterproof material, it can be used to cover a full wall or as a decorative wainscoting wall accent. Acrylic is one of the most cost-effective materials for your bathroom.

Is it OK to tile over Greenboard?

You can safely install tile on top of green board, which is also known as water-resistant drywall. However, due to the waxy surface of green board it’s essential to prepare the surface by skim coating and sealing it. If green board is not painted with sealer, tiles may fail to adhere to the green board.

What type of drywall goes behind a shower?

Green. Green drywall is a type of drywall that’s mold resistant and is used in applications where moisture can be an issue—so most commonly, bathrooms. To maximize the mold resistance, use mold-resistant drywall mud, aka joint compound. Green drywall generally costs about 20% more than regular drywall.

Do you need put plastic behind cement board shower?

You should NOT place a vapor barrier BEHIND the backer board. Where, pray tell, would any such collected vapor/water go? Answer:There’s nowhere proper for such moisture to egress. The current best practice is to place waterproofing OVER the backetboard and just UNDER the tile.

Do you put sheetrock behind shower walls?

Quote from the video:
Quote from Youtube video: I do this behind the enclosure all the way up to get myself a nice level wall. And it works perfect and I get no water penetration ever in my bathtubs.

How thick should cement board be for shower walls?


The minimum recommended thickness for the shower wall is 1/2″ because like some of the other boards, they become far too flexible at thicknesses below 1/2″.

Does cement board go over drywall?

(Some cement board products may not require the underlying membrane if the seams are properly waterproofed.) In such wet areas, never install cement board directly over drywall or green board. Instead, first, remove the existing surface material, then install the cement board over the studs and membrane, as applicable.

How do you install cement board on a shower wall?

Quote from the video:
Quote from Youtube video: Work against the stud here on this scab. And we're against the stud here so we're gonna slide it. Down. We're against this there's no gap no gap no gap no gap. Then if we come down here.

What’s the difference between green board and cement board?

So, again green board is generally used for the walls in the bathroom that will not come in direct contact to water. Cement board is sometimes called Durock, Wonderboard, and Hardibacker. It is used for wet applications in tubs walls, shower walls, and floors.

Does shower pan liner go behind backer board?

The wallboard must be installed 1/8 inch above the shower pan. If the shower pan is not in place, the wallboard height must be guessed, which can lead to inaccuracies and an expansion gap that is too large or too small.

How do you secure cement board to a wall?

Quote from the video:
Quote from Youtube video: Really on the walls I'm only going about four screws four to five screws. Down the stud. You can just spread them out we'll talk about this when you get to the floor.

Can you just screw down cement board?

Doing this will require that you remove the existing surface material before installing backer board over the studs. Cement board can also be used on countertops when laying tile. However, the process will involve using an extra sheet of backer board. Never use standard screws when installing cement board.

What’s the difference between cement board and Hardibacker?

HardieBacker is much more light, and it is also the best selling brand of cement board available. It is much cleaner because it does not have any glass in it. It allows for a smooth job with minimal mess. As a bonus, HardieBacker board has an EZ Grid pattern so you can cut perfect lines.