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Old 06-20-2012, 10:00 AM   #1
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Shower liner on basement concrete.


Hi,

I'm a bit confused about which order to build my basement shower pan.

It's going in the basement.

I've poured the curb already.

Question is. Next. Do I lay the rubber liner 1st then put the sloping mortar in? Or do I put the mortar directly on the cement floor then put the liner on top of it?

Please advise,

Thanks!

Henry

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Old 06-21-2012, 06:20 AM   #2
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Shower liner on basement concrete.


How to build a shower - Building a shower pan with pre-sloped mortar bed, liner and curb.

This should be a start---ask questions after reading it---

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Old 06-21-2012, 10:59 AM   #3
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Shower liner on basement concrete.


Should have done some research BEFORE you poured your curb. The liner gets cast inside the curb.

There are other ways to do it but you will have to change liners and methods now.

Oh-Mike can point you to a How-To somewhere, he's good at that.

If you have any questions you can't get answered here, or you need serious personal assistance, email me. Be glad to help.
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Old 06-28-2012, 12:10 AM   #4
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Shower liner on basement concrete.


Quote:
Originally Posted by Bud Cline
Should have done some research BEFORE you poured your curb. The liner gets cast inside the curb.

There are other ways to do it but you will have to change liners and methods now.

Oh-Mike can point you to a How-To somewhere, he's good at that.

If you have any questions you can't get answered here, or you need serious personal assistance, email me. Be glad to help.
Oh, i got it figured. The liner is going ontop of the cement curb and preslope. Then i'm putting lathing ontop of the curb and mortar everywhere. Then tile.
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Old 06-28-2012, 09:30 PM   #5
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Shower liner on basement concrete.


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Oh, i got it figured. The liner is going ontop of the cement curb and preslope. Then i'm putting lathing ontop of the curb and mortar everywhere. Then tile.
Well okay if you want to continue to do things the hard way, go right ahead.
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Old 06-30-2012, 12:47 PM   #6
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Shower liner on basement concrete.


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Originally Posted by Siubeer View Post
Oh, i got it figured. The liner is going ontop of the cement curb and preslope. Then i'm putting lathing ontop of the curb and mortar everywhere. Then tile.
Good on you for doing a pre-slope under your liner.

How old is that slab? Is it crack free? If the slab is old, cured and in good condition you can use a product from Mapei called Mapecem Pre-Mix fast Setting Screed Mortar to prepare your pre-slope. It can go from 1/4" to 4" in thickness and need a slurry coat made from the same Pre-Mix and Planicrete AC. This layer will set up in under four hours and you can cover with the liner the next day (14 hours later).

Noble company has a preslope that installs in under five minutes and you might consider this if you don't want to make one from concrete.

Make sure you flood test your shower. It's the only way you will know it functions properly.

After you pull the plug make sure that all the water drains. Protect your weep holes from plugging and set in your tile prep layer. Over a liner it will need to be from 1 3/8" to 2" thick, depending on what mortar you select.

You can at this stage use a NobleFlex Flashing tool (1 1/2" ) version and go with a bonded membrane called Noble Seal TS, or Dal Seal TS, or Noble Deck, or Noble CIS. This will skip one of the mortar layers and speed things up.

Good luck!

JW

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