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Old 09-06-2017, 06:37 PM   #1
Geno Woodlands
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Has anyone seen, heard of this CURB technique?

Had 2 upstairs bathroom remodels where the tubs were converted to full showers. The vinyl liner on the curb side extended to the edge of the tile then went straight down and stopped. The "curb" was 2 pieces of wood covered on the top and outside with backer-board. The "curb" was then covered with an inside,top,and outside piece of marble. The "water-proofing" from the inside of the shower was to be achieved by silicon caulking the edges of the inside marble to the floor of the shower and up the sides. Needless to say, we had water pouring into the downstairs with both showers via light fixtures on the first floor. (Apparently there was no "pan" test) Contractor and his plumber said we just needed more silicon caulking. From what I've learned on this excellent website, it looks like I need curbs with the liner coming up and over. Has anyone had experience with this type of curb situation. I've included some pictures below. Thanks Geno Woodlands.
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Old 09-06-2017, 06:59 PM   #2
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Quote:
Originally Posted by Geno
Has anyone had experience with this type of curb situation.
You mean boogerin'? Yep, way to much experience with that here, I'm afraid.


You're right about needing the unpenetrated liner over the curb. If more caulk is the answer, well, it should never be the answer.
Looks to me like they tried to engineer a simpler system of curb building and failed miserably.

This is not something you should pay for BTW.
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Old 09-06-2017, 07:10 PM   #3
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Welcome, Geno.

What Peter said.

I don't understand the following:
Quote:
Originally Posted by Geno
The vinyl liner on the curb side extended to the edge of the tile then went straight down and stopped.
What is the red material in the last photo? The little piece of gray material at the end of the curb is your pan liner? With the screw though the CBU on the inside of the curb?
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Old 09-06-2017, 07:16 PM   #4
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Sorry about the picture orientation. The "red" is a painted 2x4 board. In the 4th picture, the shower is to the top and the bathroom floor is to the bottom. (The shower floor is higher than the bathroom floor). The liner comes out from below the shower tile floor and wraps under the red 2x4 board.
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Old 09-06-2017, 07:18 PM   #5
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The 3rd picture is taken from the inside of the shower looking out to the bathroom floor. You can't see the liner in this 3rd picture as it is under the tile of the shower floor but it comes out and wraps under the red 2x4.
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Old 09-06-2017, 07:24 PM   #6
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Thats funny, they tried to waterproof the 2x4s...you can add a case of silicone and you'll still have issues. In the end you have a failed shower pan.
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Old 09-06-2017, 07:29 PM   #7
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The last picture is taken from the bathroom floor looking up to the shower on the right. The horizontal pensel mark is level with the floor of the shower.
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Old 09-06-2017, 08:27 PM   #8
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For clarity, Geno, I drew this cross section as I understand your photos and description. Doesn't show CBU, but is this kinda what they left you?
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Old 09-06-2017, 08:33 PM   #9
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Yes. That's it. Shower to the left -- bathroom floor to the right. Here's some photos that give bigger perspective.
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Old 09-06-2017, 08:34 PM   #10
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Taped over shower drain.
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Old 09-06-2017, 08:41 PM   #11
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But the tile /pan end at the 2 pieces of wood
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Old 09-06-2017, 10:47 PM   #12
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The only thing that will improve that shower is a sledge hammer.

Excuse my smoker's cough. [hack, hack, hack]
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Old 09-07-2017, 02:42 AM   #13
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Sorry to say it, but what you have is completely improper. There's also no truly acceptable way to fix it without tearing your floor (and likely walls) apart. The liner MUST go up and over the curb, never under it.
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Old 09-07-2017, 06:49 AM   #14
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That is most assuredly not going to work.
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Old 09-07-2017, 07:00 AM   #15
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What the others said. Not sure how they thought this would hold water.
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