Schluter Shower Tray Adhere To Subflooring - Remodeling - DIY Chatroom Home Improvement Forum
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Old 04-07-2019, 04:31 PM   #1
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Schluter shower tray adhere to subflooring


Can anyone give me a good reason not to use epoxy or construction adhesive, or some other adhesive meant for plastic to wood, when installing the Schluter shower tray to a plywood substrate? We are talking about attaching styrene to wood here. Why would I use mortar? And if you know to use mortar (thinset) from experience, please recommend a good brand/product. Thank you.
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Old 04-10-2019, 12:33 PM   #2
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Re: Schluter shower tray adhere to subflooring


Why not download their guide and follow their directions? They know which compounds are not going to cause problems with their products' composition. For thinset I have used Versabond which is a fortified thinset. Great for laying Kerdi mat down on the subfloor and then adding tile to prevent cracking.
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Old 04-21-2019, 09:43 AM   #3
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Re: Schluter shower tray adhere to subflooring


You're using the mortar to remove any voids beneath the shower tray, not just to bond it to the subfloor. I would think laying the liner on globs of glue would actually work against what you're trying to do.
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Old 04-21-2019, 12:27 PM   #4
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Re: Schluter shower tray adhere to subflooring


It is also important to provide the surface you want for the tile which includes the slope needed and direction for the slope to get water to flow readily to the drain.
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Old 05-22-2019, 03:23 PM   #5
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Re: Schluter shower tray adhere to subflooring


Can you give me some information on your shower walls?
I am thinking about doing the Kerdi preformed pan and I am concerned that my old house will have movement and think that the kerdi walls might not be that great of a setup.

I was thinking Hardi board for the walls I'm not sure how they will join together to make a waterproof barrier.
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Old 06-21-2019, 05:14 PM   #6
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Re: Schluter shower tray adhere to subflooring


Typically you put mesh tape on the seams and thinset over them. The tape reinforces the thinset so it doesnt crack. I usually dont worry about the joints leaking. There are several ways to add belt and suspenders to this application. One you could first staple up roofing felt everywhere the hardi backer goes. Next apply the mesh and thinset. You can even hit all the seams with a liquid waterproofing found in the tile section at your hardware store.

here's a pic of the seams done. I ran out of the gray thinset, thats why some of its white.

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Old 06-21-2019, 05:16 PM   #7
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Re: Schluter shower tray adhere to subflooring


You can also waterproof the whole thing after thinset and mesh over the joints. Oh ya thinset over the screwheads as well.

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Old 06-21-2019, 05:23 PM   #8
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Re: Schluter shower tray adhere to subflooring


Sorry about the "hijack"
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Old 07-15-2019, 11:19 AM   #9
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Re: Schluter shower tray adhere to subflooring


Appreciate the help on this. Do you thin that Hardi is a better way to go with a Kerdi pan?
I had first thought of just doing the whole shower area in kerdi walls and all.
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Old 07-15-2019, 11:19 AM   #10
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Re: Schluter shower tray adhere to subflooring


Quote:
Originally Posted by lug-nuts View Post
Sorry about the "hijack"
should have quoted yo in this hijacking
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Old 07-15-2019, 11:29 AM   #11
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Quote:
Originally Posted by JPeters View Post
Appreciate the help on this. Do you thin that Hardi is a better way to go with a Kerdi pan?
I had first thought of just doing the whole shower area in kerdi walls and all.

I think hardi backer is a fine substrate for your shower. Just tape and mud the seams and mud over screws. It will be just fine.
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Old 07-15-2019, 01:05 PM   #12
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Re: Schluter shower tray adhere to subflooring


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Originally Posted by lug-nuts View Post
I think hardi backer is a fine substrate for your shower. Just tape and mud the seams and mud over screws. It will be just fine.
Yeah I think I am going to do what biggycat mentioned in his 4/18 post... ( just read it )

He said that the Schluter rep. said he just needs to hardi-board the wall down to the sub-floor mud and waterproof then add the Kerdi pan to the space then, follow the Schluter instruction to water proof the pan to the wall.


HOWEVER!
I am adding a bench in the bathroom should I do the same as I do to the walls hardi, tape, mud, red guard, tile?
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Old 07-15-2019, 02:25 PM   #13
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HOWEVER!
I am adding a bench in the bathroom should I do the same as I do to the walls hardi, tape, mud, red guard, tile?
[IMG class=inlineimg]https://www.diychatroom.com/images/smilies/icon_eek.gif[/IMG][/QUOTE]

Yep, build the bench, then waterproof it before you tile.
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