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Unread 12-08-2008, 06:03 PM   #1
MrJohnnyT
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Question Add mud to sides of shower Curb to fix uneveness?

{edit: added pic a few posts below this one}

Hello,

My name is John, and first let me say ThankYou! to those whose posts guided me to success in my Saltillo tile install. I will post pics and additional info about that in the future, but now I would like to ask for advice about my current problem...

A contractor installed a shower pan and curb, but the curb mud/lathe turned out very uneven in spots on the SIDES. I read that one way to fix this is to use thinset to fill in the gaps up to 1/4". However, there are some severe slopes/uneveness with my curb that would necesitate up to 1" thick smoothing out on the sides.

Assuming I can salvage this, I have 2 questions:
1) Should I use thinset in stages to buildup the uneveness, or would it be better to use Fat mud preceded by the application of a bonding agent.

2) If I use a method from #1, the width of my curb will probably end up being about 7 or 8 inches wide by the time the tile is installed; is this too wide for a curb?

Thankyou for any advice you pros & semi-pros may provide. I am hoping to not have to tear out and redo the curb myself.... I should have just done it myself to begin with.

P.S. The curb was constructed from stacked 2x4s and everything else was done properly.... preslope, liner, weep holes, staples in correct spots.
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Last edited by MrJohnnyT; 12-09-2008 at 05:22 PM.
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Unread 12-08-2008, 06:16 PM   #2
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Hi John, I would use some fat mud bonded with thinset if it's that drastic .
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Unread 12-08-2008, 08:40 PM   #3
Tool Guy - Kg
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1" thick needed to level it out? It's hard for me to imagine how it was constructed 1" out of whack.
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Unread 12-08-2008, 08:44 PM   #4
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Hi John,

I agree with Bubba on this one...hard to imagine it being out that far (but I am not doubting you ).

In any case, as said, fat mud bonded with thinset will take care of the problem. Use a straightedge on the top (The John Bridge Method ) to keep the new work straight.
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Unread 12-09-2008, 08:27 AM   #5
MrJohnnyT
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Thankyou for the replies everyone.
It's more like parts of it are out of whack, either jutting in or jutting out all wave-like. Maybe he forgot to add the lime or mixxed it too wet and it settled strangely. I'll try to take some pics to show what I'm talking about.

So you don't think 7 or 8 inches would be too wide for a curb? I'm picturing a little old lady trying to step over it with a wet floor and slipping.... My girl and I are 31 and 28 yrs old, so we're fine with it, I'm just thinking about whoever I may try selling the place to in the future.... you know, in 37 years or so when the market turns around.... ugh...

Although, I guess they could always step ON the curb... but the shower door track might end up being in the way of that...
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Unread 12-09-2008, 05:12 PM   #6
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Here is a pic of the problem.
The lathe sticks out too far on the left, as well as the right(off screen), and the rest of it has dips and hills. The straight-edge is positioned so it hits the highest hills on both sides, resulting in gaps of up to an inch throughout the side of the curb...
Disgusting...
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Unread 12-09-2008, 05:24 PM   #7
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Hi John

I see what you mean now, yes it should be fixed. It will result in a curb that is wider than normal but I don't think it is a bad thing to be that wide.
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Unread 12-09-2008, 05:27 PM   #8
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Don't think so, Z. Looks like a final curb to moi, lath, mud and all.
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Unread 12-09-2008, 05:40 PM   #9
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Right, that's why we were suggesting to bond fat mud to it and true it up.

At first, when I saw the photo, I thought the shower floor was at the top of the picture and we were only seeing the rough curb. Duh, then I saw the oatey drain on the bottom of the photo and realized what I was looking at.
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Unread 12-09-2008, 06:01 PM   #10
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I think he just pewt that soup can there to confuse the Yankees. I don't think it's part of his shower.
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Unread 12-10-2008, 02:02 PM   #11
MrJohnnyT
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It is actually- I'm going to build the wall using reclaimed soup and paint cans.... No really it's just there to hold the angled straight edge in place to help show the gap to be filled. The drain in the top right is for the toilet... yes it is awfully close to the shower--> small condo bathroom.

Thankyou for the replies - So I am going to even it out with fat mud over a thin layer of thinset, modified thinset perhaps.
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Unread 12-10-2008, 02:50 PM   #12
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rather than building up, couldn't John knock down / grind down the high spots (especially that nasty left corner) so he'd only need a thin coat of thinset to level it out? not sure if grinding into the lathe is those spots is a good idea though...
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Unread 12-11-2008, 12:32 PM   #13
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Question

Alright last question:

Should I let the thinset bonding agent dry before I apply the mud, or should I do it while the thinset is still wet? I would visualize both methods working... but I bet that I should do it wet to get the best bond. Am i right?
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Unread 12-11-2008, 12:39 PM   #14
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Pewt the mud whilst the thinset is wet, John. Don't be no new bondin' goin' on after the thinset has dried/cured, eh?
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