Installing backerboard for shower walls
Here’s a few steps for installing backerboard on shower walls. Regular sheet rock won’t do for the inside of the shower. Cement board or backer board is perfect for showers, tub surrounds, and other high humidity areas. It requires special masonry screws.
Cement board is used instead of regular sheetrock in high moisture areas.
It’s kind of heavy and difficult to cut, but it’s very durable. It’s also part of most modern building codes for showers. There is also green board which is easier to work with. Green board can be used in other parts of the bathroom but cement board should be used inside the shower.
Remember to protect your eyes. Cutting this stuff can be pretty nasty. It will be the worst part of installing backerboard in a bathroom or kitchen.
Notice how the cement board is nailed to the wall but it doesn’t rest on the membrane. You’ll want to leave about ¼-inch between the cement board and the membrane.
This prevents possible tears in the membrane from the weight of the cement board. It’s also important to avoid putting screws or nails lower than about 5-inches toward the bottom of the shower pan.
The membrane is really tough stuff, but it can still be punctured if you’re not careful. Try not to walk on it while installing the cement board onto the walls.
Once the cement board is in place you will need to tape the joints with special adhesive netting and then put one layer of cement board compound over the tape.This helps make a better moisture seal and sound seal.
Over 4 million visitors to this site since it was born!
My newsletter keeps you up to date on home construction and design ideas.
I just wanted to say that I love your website. My husband and I followed your instructions on building our own home. Most of the work we did ourselves, but not all. We saved $90,000 in labor costs and now have a beautiful home that we own.
--Sue and Les Carrigan, Draper, Utah
I built my own home doing all my own labor. My house costs me around $70,000 for materials. It took me 8 months to build and is about 2,000 square feet. I didn't think I could do it, but your house web site encouraged me. I used all the info you had.
Benny Luis Lopez,
I can't thank you enough for your free information web site about home building. I was looking for Electrical wiring diagrams when I found your site. It was very helpful.
Little Rock, Arkansas
My wife and I lost our home to foreclosure but we kept a plot of land to start over. We are halfway through the construction of our house. Your website gave us hope to start over and build a house with low payments. We are in our late 60's but we find it rewarding to put so much effort into a project that will reward us for years to come.
Name respectfully withheld