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Unread 12-04-2002, 12:51 PM   #1
WilliC
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Question Felt, Lath, Preslope over concrete floor

Hello All,

Great forum.

I'm getting my shower ready for tile. I'm ready to create my preslope with deck mud. I have read a few of the library links on this and am wondering about the felt and metal lath stapled down over plywood floors. Is this necessary when installing on concrete slab? If so how is it attached?

Also, I havn't been able to find locally any preformed dam corners for my pan where I need to go over the curb. Is there an altenate method of doing this?

Thanks in advance,
Willi
Victoria, TX
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Unread 12-04-2002, 01:49 PM   #2
davem
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Hi Willi, welcome to the forum.

Your first question was answered here in Rob Z's response.

I mail ordered my dam corners.
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Unread 12-04-2002, 02:19 PM   #3
Bud Cline
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Do a search here for the Composeal people I'm sure I listed their phone number somewhere. They will drop ship corners to you thru your local supplier that probably won't know what they are.

Composeal is the blue one.

Compotite Corporation
355 Glendale Blvd
Los Angeles, CA 90026

The lady there is a sweetheart to deal with, very friendly helpful people.
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Unread 12-04-2002, 05:33 PM   #4
John Bridge
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Hi Willi, Welcome to the fray.

You bond the mortar directly to the concrete with thin set. No felt, no lath. I need to do an article on that. Just haven't had the time.

There is a way around the dam corners if you have a three-wall shower without any jamb returns. That means the end walls of the shower come straight out and continue into the bathroom. Let me know. I have some pics of that method. Otherwise, I think you need to get the corners, even if you have to make the run up to Houston.

Seems to me there has to be a plumbing shop in Victoria that could get them for you. How do they put in shower pans down there? Wait, maybe it's better if we don' tknow.
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Unread 12-04-2002, 06:06 PM   #5
WilliC
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Smile Felt, Lath, Preslope over concrete floor

Thank you all for the quick and usefull responses!

John, it's actually a 2 wall corner shower, curb with a 45 connecting the two (picture attached). So I think this application is essentially the same as what you are saying.

If it is, please forward your pics!

Thanks,
Willi
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Unread 12-04-2002, 07:09 PM   #6
John Bridge
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Yeah, this is a natural, since you have the sheetrock up already.

You can install a moisture barrier over the rock, then 1/2 inch backer board on top. This will allow space for the gather in the liner that my method produces.

I think you will be able to see how the pan is folded against the curb instead of against the wall. Also you make a small cut that will be outside where the shower door goes. The gather caused by stretching the material will be contained in the space behind the backer board that you will create when you cut out the bottom portion of the sheetrock up to about 8 inches from the floor all the way around the shower. You will have to install wood backing between the studs to secure the pan material to.




Also, you need to build up your curb with a couple more 2x4s on top of the one you have.
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Unread 12-04-2002, 07:14 PM   #7
John Bridge
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One more thing, Willi.

Why are you making your shower so small? It looks as though there might be room to make it bigger.
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Unread 12-05-2002, 01:36 AM   #8
WilliC
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Felt, Lath, Preslope over concrete floor

Thanks for the pics John...

Before you posted I found a place in Dallas that had the corners in stock and they are overnighting them to me (wife want's this completed for the holidays!)

My plan was 4 mil clear poly over the green rock and then the Hardibacker.

Any problem with 1/4" Hardi instead of 1/2" since I also have the sheetrock up? Local tile place said 1/4 so that's what I've been going on... My shower valve doesn't have much adjustment. It may be set to deep for 1/2".

And yeh, I have the other rows of 2x4. I was just waiting until I had the pre-slope done.

The shower is small, 36"x36" then minus the chamfer. Not much room for more, I have a door on the left and a door swing on the right.

First pic shows the other door, second and third are what else I have to finish for the Holdiays!

Thanks again,

Willi
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Unread 12-05-2002, 04:46 PM   #9
John Bridge
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There's no good way to trim 1/4 in. backer. Mud bullnose is figured at 1/2 in.

1/4 is for floors and countertops, actually.
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Unread 12-05-2002, 11:20 PM   #10
WilliC
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Felt, Lath, Preslope over concrete floor

Thanks a bunch John. And thanks to the others that helped as well. This forum and the library has been much help!

Willi
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