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Using Thin Set To Slope Shower Floor

 
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Old 12-08-2018, 09:36 AM   #1
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Using Thin Set To Slope Shower Floor


Hi
I have a shower coming up that is in a basement on a concrete floor I have to tear the existing shower out because of failure. I cant use a Schluter shower base because the shower is an odd shape and the drain is way off center. I was going to do a dry pack but the ceiling is low and i don't want to raise the floor three more inches.
I was thinking of cutting some screeds out of Azek or some other pvc and sticking them to the floor and us thin set to go from approx. 11/4 inch to a feather edge at the drain. And then using kerdi or red guard over that.
Will thin set work for this or is there a better product for doing a thin bed shower floor.

Thanks.........nicko
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Old 12-08-2018, 10:56 AM   #2
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Re: Using Thin Set To Slope Shower Floor


Pictures sure would help.

Thin set will not work.

Tom

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Old 12-08-2018, 12:00 PM   #3
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Re: Using Thin Set To Slope Shower Floor


Dry pack mud is what you want to use. If possible use a Schluter Kerdi drain and Kerdi over the floors and walls. There is a lot to getting a dry packed floor right. Better watch a ton of youtube videos before deciding if you want to attempt it.

Schluter does made an offset foam bottom drain kit.

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Old 12-08-2018, 02:31 PM   #4
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Re: Using Thin Set To Slope Shower Floor


You can do a single layer dry pack, probably down to 1", so you're only raising the floor 1", not 3". Waterproof with kerdi over the drypack, and then tile over that.
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Old 12-08-2018, 04:03 PM   #5
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Re: Using Thin Set To Slope Shower Floor


FWIW, we have a basement shower with a finished height of only 82" (6'10") from drain plate to ceiling and it works fine. I'm 6'4" and it was odd at first, but I got used to it.
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Old 12-09-2018, 09:11 AM   #6
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Re: Using Thin Set To Slope Shower Floor


I've never met a shower that I couldn't get a schluter pan to work with

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Old 12-09-2018, 09:30 AM   #7
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Re: Using Thin Set To Slope Shower Floor


Quote:
Originally Posted by Peter_C View Post
Dry pack mud is what you want to use. If possible use a Schluter Kerdi drain and Kerdi over the floors and walls. There is a lot to getting a dry packed floor right. Better watch a ton of youtube videos before deciding if you want to attempt it.

Schluter does made an offset foam bottom drain kit.

https://www.youtube.com/watch?v=JJ3t2Nfx1pI
Thanks
I have done a few dry pack showers in the past so i know how to do them.
From where the drain is to the farthest wall is about five feet so at 11/4 thickness at the drain i would be approx. 21/2 inches of thickness at the wall. It is a low ceiling and i didn't want to raise the floor that high.
On Nobles,s web site they show a thin bed shower being done and they say to use a "high solids latex modified underlayment". I am not sure what they mean by that.

nicko
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Old 12-09-2018, 10:01 AM   #8
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Re: Using Thin Set To Slope Shower Floor


Quote:
Originally Posted by nickko View Post
Thanks
I have done a few dry pack showers in the past so i know how to do them.
From where the drain is to the farthest wall is about five feet so at 11/4 thickness at the drain i would be approx. 21/2 inches of thickness at the wall. It is a low ceiling and i didn't want to raise the floor that high.
On Nobles,s web site they show a thin bed shower being done and they say to use a "high solids latex modified underlayment". I am not sure what they mean by that.

nicko
https://www.carter-waters.com/patchc.../patch%20crete

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Patchcrete is a two component polymer modified concrete repair, topping, and underlayment material. The Patchcrete liquid is a high solids content Acrylic Polymer. The Patchcrete Powder #1005 is a portland cement based mix with graded silica and special chemical additives. Polymer modified concrete gives improved bonding, improved chemical resistance, improved water resistance and improved tensile, compressive and flexural strengths.
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Old 12-09-2018, 10:10 AM   #9
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Re: Using Thin Set To Slope Shower Floor


What I did was googled your quote: "high solids latex modified underlayment"

Should get you up to speed.\

https://www.google.com/search?q=high...hrome&ie=UTF-8
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Old 12-09-2018, 10:45 AM   #10
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Re: Using Thin Set To Slope Shower Floor


Look into the new Schluter thin bases.

Tom
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Old 12-09-2018, 03:29 PM   #11
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Re: Using Thin Set To Slope Shower Floor


Quote:
Originally Posted by SmallTownGuy View Post
What I did was googled your quote: "high solids latex modified underlayment"

Should get you up to speed.\

https://www.google.com/search?q=high...hrome&ie=UTF-8
Thanks Smalltownguy

I did google it a few days ago and came up with the same thing you did but i didn't look into it much farther because i figured at 45 pounds per bag shipping would be expensive. I think I will call Noble on Monday and ask them what they used in there video for a thin bed shower. They used plastic screeds and screeded the mud across the plastic screeds. I have done about fifteen Schluter showers over the years and this is just a situation where the foam base is not going to work.
I have cut them to fit and i have added dry pack to them to make them work. If i wanted to move the drain i could use a 4x6 Schluter base but these people just got a new sewer line in and pressure tested and i don't want to cut the concrete floor up to move it.

thanks.....nicko

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