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-   -   Backer board shenanigans (http://www.diychatroom.com/f84/backer-board-shenanigans-178187/)

forcedreno2012 04-27-2013 02:56 AM

Backer board shenanigans
 
2 Attachment(s)
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

jproffer 04-27-2013 04:11 PM

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

BTW, nice drawings :)

forcedreno2012 04-28-2013 01:11 AM

Thanks JP....as always a picture is worth a thousand words :laughing:

oh'mike 04-28-2013 06:24 AM

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)

framer52 04-28-2013 08:27 AM

You use thinset on the tub lip?

oh'mike 04-28-2013 08:33 AM

Quote:

Originally Posted by framer52 (Post 1168649)
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---

forcedreno2012 05-05-2013 10:36 AM

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

cleveman 05-05-2013 09:12 PM

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.

ddawg16 05-05-2013 09:19 PM

I like the little duck.....

forcedreno2012 05-05-2013 09:47 PM

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

jjrbus 05-13-2013 08:50 PM

Fastening Durock next generation
 
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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