Tiling Tub Surround

 
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Old 03-20-2011, 01:25 PM   #1
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Tiling Tub Surround


Is it ok to put green sheetrock around a tub and put tile to it with mastic? or should there be cement board around the first 2 feet and then swap over to sheetrock?
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Old 03-20-2011, 01:32 PM   #2
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Re: Tiling Tub Surround


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Originally Posted by bluebird5 View Post
Is it ok to put green sheetrock around a tub and put tile to it with mastic? or should there be cement board around the first 2 feet and then swap over to sheetrock?
Oh boy, nothing about that works at all. CBU the whole thing as a minimum and use the mastic for, well, use the bucket to sit on. None of that combination has any business in a wet location

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Old 03-20-2011, 01:52 PM   #3
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Re: Tiling Tub Surround


Can it be done that way to some sort of success? Yes.

However, why? By simply using a liquid membrane and thinset, you've just eliminated any potential problems. If you are doing a liquid membrane, you don't need cement board. Just cover the entire area. or you could use cement board and just liquid over the seams and screw holes. Or you could use DensShield and liquid the seams and screw holes.

You have options, I just wouldn't use green board and mastic.

BTW, green board has been removed from the IRC for 2006.
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Old 03-20-2011, 01:53 PM   #4
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Re: Tiling Tub Surround


and dont forget 4 or 6 mil clear poly on the studs, over the lip of the tub.... Be sure to use proper alkali resistant mesh tape on the seams and corners set with thinset. (powdered thinset, none of that pre-mix junk)
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Old 03-20-2011, 02:07 PM   #5
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Re: Tiling Tub Surround


Well that is what I was wondering because it is just a tub and not a tub shower combination if you still need the waterproofing. I don't spash water all over the walls when im playin with my rubber duckies. Angus, mapie aqua defense or redguard ok for sheetrock (mold resistent)
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Old 03-20-2011, 02:13 PM   #6
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Re: Tiling Tub Surround


Yes, you can use Mapei AquaDefense over drywall. Although, what's the use of having moisture resistant drywall if it's covered by a liquid membrane?
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Old 03-20-2011, 02:13 PM   #7
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Re: Tiling Tub Surround


never could figure out why people spend so much time, money and effort to do it wrong when floating is just so easy.
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Old 03-20-2011, 02:16 PM   #8
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Re: Tiling Tub Surround


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never could figure out why people spend so much time, money and effort to do it wrong when floating is just so easy.
You mean mud walls?

I can do it 3x's quicker without.
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Old 03-20-2011, 02:53 PM   #9
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Re: Tiling Tub Surround


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Originally Posted by angus242 View Post
You mean mud walls?

I can do it 3x's quicker without.
without an intregal drainage system ?
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Old 03-20-2011, 02:54 PM   #10
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Re: Tiling Tub Surround


For a tub surround?
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Old 03-20-2011, 04:26 PM   #11
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Re: Tiling Tub Surround


especially for a tub surround.
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Old 03-20-2011, 04:43 PM   #12
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Re: Tiling Tub Surround


Not really sure at what you're getting at. What does a tub surround have to do with an integral drainage system?
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Old 03-20-2011, 04:56 PM   #13
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Re: Tiling Tub Surround


Mud is not waterproof. Are you then covering the mud with a liquid membrane?

I'm as confused as Angus
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Old 03-20-2011, 05:03 PM   #14
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Re: Tiling Tub Surround


water get in and needs to be channeled out. when the water can not get out, it backs up
and stacks up in the wall until if finds a place to weep out.
as the wall becomes saturated, mold, dryrot and structural damage set in,
The cure is too make the third coat (tile) waterproof. which demonstrates my first and second points (time and money).
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Old 03-20-2011, 05:06 PM   #15
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Re: Tiling Tub Surround


Why let water in and the allow it to get out if you can just keep it from getting in at all?

Like I said, I can I perform the "keep water out altogether" method much quicker. Perhaps others prefer other ways. I was just answering the OP's question with my opinion.

I seriously doubt that in this situation, with the person who asked the question that a floated tub surround wall is the advice needed.
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Old 03-20-2011, 05:08 PM   #16
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Re: Tiling Tub Surround


Quote:
Originally Posted by essrmo View Post
The cure is too make the third coat (tile) waterproof. which demonstrates my first and second points (time and money).
and tile isn't waterproof...thus the necessity of waterproofing behind it.
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Old 03-20-2011, 05:10 PM   #17
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Re: Tiling Tub Surround


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Originally Posted by katoman View Post
Mud is not waterproof. Are you then covering the mud with a liquid membrane?

I'm as confused as Angus
liquid membrane (waterproof barrier) is not nessesary if you provide drainage.
yes, (properly built) masonry walls have intregal drainage systems. rather than explain it to people who , just look it up.
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Old 03-20-2011, 05:11 PM   #18
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Re: Tiling Tub Surround


Quote:
Originally Posted by essrmo View Post
water get in and needs to be channeled out. when the water can not get out, it backs up
and stacks up in the wall until if finds a place to weep out.
as the wall becomes saturated, mold, dryrot and structural damage set in,
The cure is too make the third coat (tile) waterproof. which demonstrates my first and second points (time and money).
I understand now, you rely on the grout to be waterproof. No issue with that. But as Angus has said there are faster ways than mud walls.

Not saying anything wrong with mud.
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Old 03-20-2011, 05:22 PM   #19
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Re: Tiling Tub Surround


I'm still confused.

Cementitious grout has an absorption of around 7%-9%. How is that waterproof?
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Old 03-20-2011, 05:33 PM   #20
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Re: Tiling Tub Surround


ok they hell with the two goof balls. Hang some Durock NEXTGEN. Mud the seams and install some LATICRETE hydroban and call it done. If water goes thru HYDROBAN I will walk into the whitehouse nude and be on CNN

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