Purchasing HardieBacker for the Guest Bathroom

Yesterday, John purchased 1/2″ HardieBacker cement board for the guest bathroom walls and 1/4″ HardieBacker for the floor.

HardieBacker cement board is mold and moisture resistant and is an ideal underlayment for bathroom tile. It’s made out of 90% Portland Cement which is manufactured from limestone and clay.

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John measured the length and width of the bathroom floor and then he precut the HardieBacker in three pieces.

He dry fitted the three pieces so that when he puts the tile adhesive down, the cement board will be ready to be placed on the adhesive and screwed down. Once the cement board is in place, it will have a crack resistant foundation to lay any type of ceramic or porcelain tile. In a previous post, I mentioned that we’ll be laying Daltile B&W Hexagonal Tile on the floor and Daltile Rittenhouse Subway Tile for the walls. (I have  partnered with Daltile on this bathroom tile project).

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John also marked the floor joists so that he would know precisely where to drill the screws after installing the HardieBacker. If you don’t mark the floor joists in advance, you’ll be drilling into 3/4″ plywood or T&G which would not be nearly as strong as drilling into the floor joists.

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John cut the HardieBacker with a circular saw using a DIABLO HardieBlade purchased at Home Depot. The DIABLO blade creates less dust, faster cuts and has a longer cutting life.

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Next: Applying OmniGrip Tile Adhesive & installing precut HardieBacker cement boards on the guest bathroom floor.

5 thoughts on “Purchasing HardieBacker for the Guest Bathroom

    1. I was going to mention that the Hardiebacker is heavy, way too heavy for me to lift even one piece. I actually asked John how much each piece weighs but he was working and it wasn’t a great time to ask. I deleted a paragraph about carrying the cement board upstairs from the truck and then realizing it had to be cut downstairs.

  1. Not a bad idea to record the information from this cement board as in the past people have broughr dry wall only for it to be made in China and,it hadled or something in it and,got pulled from the market.
    Goverment has a web site for recalls and,alot of stuff shows up on it. I find it amazing of how much home products show up in the recall notices.

    I wish you guys lots of luck on your home. Its come a long way.

    1. You can’t use regular dry wall in a bathroom anyway.

      I think that drywall incident was years ago and all of that drywall has been removed from circulation so it’s no longer out there to be purchased.

      Regular drywall is for normal installation, blue board is for plaster and green board is for areas like bathrooms if I recall correctly. But it’s been over 10 years since I did my bathroom and I’m sure there are newer and better products on the market.

  2. When I did my bathroom I cut the cement board with a razor blade knife. But I was working with quarter inch because I had greenboard and two different layers of vapor barrier on the walls. I didn’t know where my studs were so I ended up screwing down a 6 inch grid across the entire floor. Don’t forget to tape the joints. They have special plastic net “tape” for that.

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