If so, then you should purchase what they require.īut the system works by having a bed of mortar underneath holding the board up and fasteners from above holding the board down. I know the manufacturers will want you to use their own brand and may even specify a type. Here’s the bit of good news: it doesn’t really matter which brand or type of thinset mortar you purchase. Which type of thinset do I need for underneath the cement board installation? Cement board is a different product and it needs to be installed in its own way.Īdditionally, screws don’t take the place of thinset either. We have to remember that this isn’t the same as installing plywood. But most people don’t look at them- not even the pictures.Īlso, I know some are wondering but, no, Liquid Nails does not count as a thinset replacement. “The thinset goes ON TOP of the cement board to stick the tiles!”Ī simple perusing of the instructions would show otherwise.
I scrolled down to look at the comments and they did not disappoint. Just the other day, I saw a video featuring someone fastening Hardibacker directly to the subfloor with nothing underneath it. Here they are: Cement board seams require mesh tape and thinset 1.
However, these are the five that stood out in my unofficial memory as being the most common. The floor needs to meet minimum requirements for tile BEFORE any tile backer board is installed. Hint: cement board should never be counted on to stiffen up your floor. In fact, this is already assuming that your wood subfloor meets the minimum requirements. Now there are more ways to screw things up than just these five things. Messing up cement board installation is not just limited to these 5 ways So the moral of this story is to read the instructions and not simply this post.įinally, if cement backer board isn’t your thing, be sure to investigate other tile underlayment options. Each manufacturer will have their own instructions for their own products and they will vary a little bit from each other. Let me throw in one disclaimer here: These are general guidelines. These come in two categories: cement board and fiber cement board.Įxamples of cement board are: Wonderboard, Durock, and PermabaseĮxamples of fiber cement board: Hardibacker and Fiberock,
Mainly, the products I’m talking about are considered to be cement backer boards for tile installation. It’s the same ones over and over.Įstimated reading time: 7 minutes Which products are we talking about? 5 common installation mistakes with cement board I think most people worry about how to cut it and once they have a plan for that then they think it’ll be a breeze.īut I’ve seen these screw-ups for several years now. Cement board installation is not something that is incredibly difficult.
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