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Large Tile Floor Cracking

  • Transcript

    LESLIE: Now we’re heading on over to Washington State where Sabrina is dealing with some grout that’s cracking up. And it’s not laughing; it’s falling apart. Tell us what’s going on.

    SABRINA: So I had some grout installed quite some time ago. And they’re about 18-inch tile pieces. And what I’m noticing now is there are several places – it’s kind of happening all over – where the grout is actually cracking. And I’m not sure what to do.

    TOM: So, is it a fine crack or is it a big crack?

    SABRINA: The grout is cracking and now some of the tile pieces are cracking.

    TOM: Yeah, that’s a problem. It sounds to me like the tile was not put down on a base that was solid enough. When you use a big tile like that, you need to have a really strong base. So you have to have a mud base or you have to have a tile base. And you may even have to have an expansion material underneath that so that you don’t get this kind of cracking. If you don’t get good support across an 18-inch tile and you get a little bit of movement in the floor, it cracks very quickly.

    So, I think this – at this point, it’s going to be something you’re going to have to manage. And if it gets really bad, you’re going to end up taking those tiles out and replacing them. It’s very hard to recover from this when the tile job was potentially not done right to begin with.

    SABRINA: Yeah. And I was wondering if it has anything to do with – I’ve heard a couple of people tell me that the underlayment – and maybe you said that – the underlayment wasn’t secured down properly or whatnot.

    TOM: It wasn’t strong enough, right. It wasn’t strong enough. You see, if there’s more – if there’s flex in the floor, the tile is not going to bend, it’s going to crack. And so that’s why the tile – what’s under that tile has to be really solid. With a – bigger the tile, the wider the tile, the less forgiving it is. If you put mosaic down, it can move all day long and you’re never going to see those cracks. But when you put a big, 18-inch square tile down, it’s got nowhere to go.

    SABRINA: It’s got nowhere to go.

    TOM: Exactly.

    SABRINA: And what is your recommendation for my – for correcting it?

    TOM: Unfortunately, there’s no easy recommendation. If the tile project was done wrong to begin with, there’s nothing I can tell you to do that’s going to fix it at this point in time. It’s really going to be something that you’re going to have to tolerate and eventually, you’re going to end up replacing them. And this time, you’re going to do the proper job with putting the floor down.

    How long have these tiles been down?

    SABRINA: About five years.

    TOM: I was going to say, whoever put them down didn’t really do the job right. You’re going to end up having to tear it out and do it again.

    SABRINA: That’s OK. Well, thank you guys. I just wanted to talk to some professionals. And I heard your show and I really appreciate you guys giving me the advice.

    TOM: You got it. Thanks so much for calling us at 888-MONEY-PIT.

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