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Old 04-27-2013, 02:56 AM   #1
Renovating My Land Yacht
 
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Backer board shenanigans


We have a cast iron tub in one of the baths and I am not hoofing it out of the house so we are going to do a tile surround. There was one of those plastic ones there before but that had to go when we gutted.

I can never remember which way is right with respect to the backer board and the tub lip. Is it version A where the backer board goes over the lip or B where it ends flush with the lip. I have attached two images to help explain when I am asking.

Muchos thanks.

Robyn
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Old 04-27-2013, 04:11 PM   #2
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Backer board shenanigans


I've always put both down over the flange (like A), but I think either way you show would be fine.

BTW, nice drawings

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Old 04-28-2013, 01:11 AM   #3
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Backer board shenanigans


Thanks JP....as always a picture is worth a thousand words
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Old 04-28-2013, 06:24 AM   #4
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Backer board shenanigans


I stop the board above the flange and fill the void with thinset as I tile--or before if the surface of the board is to be waterproofed---( second drawing)
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Old 04-28-2013, 08:27 AM   #5
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Backer board shenanigans


You use thinset on the tub lip?
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Old 04-28-2013, 08:33 AM   #6
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Quote:
Originally Posted by framer52 View Post
You use thinset on the tub lip?

Yes,---Mix a small batch on the thick side---and fill that void---then waterproof it when it's set---
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Old 05-05-2013, 10:36 AM   #7
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Backer board shenanigans


Mike, If you fill it with thinset how do you keep the line straight - do you use some type of ledger or just straighten the edge with the waterproofing? I can envision doing it this way and having a wavy line at the bottom.

Robyn
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Old 05-05-2013, 09:12 PM   #8
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Backer board shenanigans


The problem with A is that you have to fur out the whole wall.

Couldn't understand your last post about keeping it straight. Did you mean up and down or in/out?

Generally, I end up cutting the bottom course of tile to fit. The tub is rarely level. Let's say it is 1/2" out of level, and you are using 6" tile. So you cut some tile to 5 1/2 and some you can probably use at 6". Then you are level for the second course.

And you lay the second course first on a ledger.
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Old 05-05-2013, 09:19 PM   #9
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Backer board shenanigans


I like the little duck.....
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Old 05-05-2013, 09:47 PM   #10
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Backer board shenanigans


Clever, I was referring about the backer board being level per se with the tub lip and then Mike talked about mudding below the backer board and then waterproofing. I was concerned with if I mud below the board where it meets the tub, how do you keep the mud straight on that edge if there is nothing below it.

Thanks
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Old 05-13-2013, 08:50 PM   #11
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Backer board shenanigans


I am asking a lot of questions lately! Anyhow some how I got it in my head (those voices again) that Durock should not be fastened closer than one inch from the edge of the panel. I have read a bunch and can find no reference to it?

My inside corners are 2X4 so 1/2" sheet on one wall leaves only one inch on the other. So would be closer than 1"

Is it OK to fasten closer than 1" from edge of Durock Next Generation? JIm

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