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Unread 09-14-2021, 07:36 PM   #1
Isaac S
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Shower head over dropin tub; how to waterproof tub deck

Help! My girlfriend has chosen a drop in tub and wants a shower head installed. It is a 3 wall alcove. My concern is that as water runs down the shower walls it will pool on top of the tub deck. I'm thinking I will build the deck frame with two-by-fours cover it with 3/4 inch plywood then redgard on top of the plywood then a kerdi decouling membrane then tile. Any advise?

Last edited by Isaac S; 09-14-2021 at 07:53 PM. Reason: More info
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Unread 09-14-2021, 08:46 PM   #2
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Welcome, Isaac.

I'm thinking you need a different tub or a different girlfriend.

A drop-in tub is not meant to be used in a shower. While there is a potential method of adding a tiling flange, that actually eliminates the drop-in ability and you'd need to frame around the tub as though it were not a drop-in and that really doesn't make any sense.

How 'bout we get you a plan B?

My opinion; worth price charged.

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Unread 09-14-2021, 09:41 PM   #3
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Those darn girls always want the impossible
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Unread 09-14-2021, 10:38 PM   #4
Tool Guy - Kg
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Your concern is very valid with water pooling/collecting along the wall.

There are, conservatively, way over 100 different tubs available. Instead of going through great pains to try making this drop-in tub work in an alcove application, I’d really suggest finding an alcove tub.
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Unread 09-15-2021, 06:52 AM   #5
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In for the pile on.

Isaac, I believe you are going to spend more time trying to make that drop in work than you would if you had the correct tub for the application. The degree of aggravation you'll suffer through is worth swapping it.

There are other options. You might consider a tub without a front apron, such tubs are made so the front can be tiled. They end up looking kinda like a drop in tub.
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