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Old 07-31-2011, 09:43 PM   #1
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I am ready for my pre slope for my shower pan. all framed out.
Now the magic question. I am doing my shower pan over a concrete subfloor with drain in place. I will put felt down for my slip sheet.
Do I need wire lath on top of the felt on a concrete subfloor.
I see people putting wire lath over felt for a wood subfloor.
Does the same rule apply for concrete subfloor, and if so how can I secure it to the concrete subfloor?

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Old 07-31-2011, 10:17 PM   #2
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Why do you need a "slip sheet" under a shower floor?

Never ever seen that done before. California is a strange place.

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Old 07-31-2011, 10:37 PM   #3
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doing mud over concrete you want to mix up some thinset kinda thinner then normal and trowel it on the concrete before you put your mud down. it will help your mud stick to the concrete floor
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Old 07-31-2011, 10:50 PM   #4
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Why do you need a "slip sheet" under a shower floor?

Never ever seen that done before. California is a strange place.
it is a shower pan that I am building
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Old 07-31-2011, 11:10 PM   #5
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Originally Posted by Bud Cline View Post
Why do you need a "slip sheet" under a shower floor?

Never ever seen that done before. California is a strange place.
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Old 07-31-2011, 11:18 PM   #6
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Building a shower pan with pre-sloped mortar bed, liner and curb.

I build a lot of these pans--I never heard of a 'skip sheet' ,either.

Preslope---liner--mud bed--curb--There are a lot of different ways of doing things--could you tell me what a 'skip sheet' does?
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Old 07-31-2011, 11:21 PM   #7
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you only need the felt under the mud if you are doing it on a wood floor. its so the wood doesnt wick the moisture out of the mud and would let the floor move independently of the pan. on concrete you dont need it. just a thin layer of thinset to help stick it to the concrete. and yes california is a strange place

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Old 08-01-2011, 12:21 AM   #8
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Building a shower pan with pre-sloped mortar bed, liner and curb.

I build a lot of these pans--I never heard of a 'skip sheet' ,either.

Preslope---liner--mud bed--curb--There are a lot of different ways of doing things--could you tell me what a 'skip sheet' does?
It prevents the bonding of the preslope to the concrete floor.
You do not want the preslope to bond in case later down the line you need to tear it out for a new pan. The pan I just tore out had roofing paper between the preslope, and pan. It was very easy to tear out. I want to know if I need the put the diamond wire down for the preslope.
Thats pretty funny skip sheet. look at the post its slip sheet
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Old 08-01-2011, 12:23 AM   #9
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you only need the felt under the mud if you are doing it on a wood floor. its so the wood doesnt wick the moisture out of the mud and would let the floor move independently of the pan. on concrete you dont need it. just a thin layer of thinset to help stick it to the concrete. and yes california is a strange place

Is a strange place
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Old 08-01-2011, 07:09 AM   #10
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No mesh needed---
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Old 08-01-2011, 09:03 AM   #11
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Quote:
You do not want the preslope to bond in case later down the line you need to tear it out for a new pan.
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Old 08-01-2011, 11:05 PM   #12
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you only need the felt under the mud if you are doing it on a wood floor. its so the wood doesnt wick the moisture out of the mud and would let the floor move independently of the pan. on concrete you dont need it. just a thin layer of thinset to help stick it to the concrete. and yes california is a strange place
Danny,
If I put the thin layer of thin set down first I understand the bonding issue.
How hard would it be to tear it out down the line to replace it once it has been bonded. I thought that one reasons for putting a slip sheet of 15 # felt prevented it from bonding . The pan I tore out was 48 years old, and it came out real easy due to the fact there was 3 tab shingles on the bottom of the concrete slab. what do you think?
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Old 08-02-2011, 06:57 AM   #13
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Danny, How many shower pans have you built? Your methods are unusual.
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Old 08-02-2011, 09:25 AM   #14
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Never heard of anyone building this type of shower with the hopes that it will fail and will have to be torn out. Showers built correctly will easily last fifty years and longer.
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Old 08-02-2011, 10:41 PM   #15
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If I trowel some thinset before my preslope for a concrete slab. How difficult will it be to remove the shower pan in the future.
I have not done a shower pan before this one, and so far it is coming along ok. The shower has been completely reframed with a new curb in place. I just have had a few different people saying that all I need is a slip sheet of 15# felt because the pan is not going anywhere

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