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Old 07-08-2011, 07:45 AM   #1
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installing bathtub


why does the drywall need to be installed over the tub flange?

What would happen if you just installed the tub up against an existing wall?

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Old 07-08-2011, 07:52 AM   #2
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installing bathtub


Drywall does not ever get installed in a wet area. At least in the U.S.A. and Canada.

The cement backer board stops at the top of the tub flange--The gap is filled with thinset as the wall is tiled.

Post a picture---It's difficult to understand what you are trying to do.

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Old 07-08-2011, 08:05 AM   #3
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Thanks oh'mike... just want to install a bathtub by sliding it up to existing walls then put on tub surround not tile.... I have attached a pic (I think)
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Old 07-08-2011, 08:38 AM   #4
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installing bathtub


Is there a shower in the tub?
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Old 07-08-2011, 08:45 AM   #5
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installing bathtub


yes there will be a shower in the tub...
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Old 07-08-2011, 10:30 AM   #6
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installing bathtub


is the entire bathtub area done in mold resistant or is it just the end pieces? Better idea would be to get some cement board or denseshield which is a fiberglass waterproof drywall type board. I am no expert but I have had 3 bathrooms re-done in the last year. Whenever they put in a bathtub they fit the tub before drywalling. The drywall goes over the lip of the tube and tile goes over that. It traps the bathub in place.
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Old 07-08-2011, 10:34 AM   #7
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installing bathtub


Quote:
Originally Posted by pms View Post
why does the drywall need to be installed over the tub flange?

What would happen if you just installed the tub up against an existing wall?
If you just install the tub up against the wall you exponentially increase your chances of a leak behind the tile or tub surround. With the top edge of the tub going UNDER the bottom edge of the drywall or concrete board you create a pretty much flat surface to install a tub surround or tile right down to the tub deck. You then caulk the surround kit or tile right down on the deck of the tub and if the caulking ever leaks then you have the half inch plastic lip in behind to keep the water away from the wall behind the tub. Cheers!

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Old 07-09-2011, 06:36 AM   #8
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installing bathtub


Look at the installation instructions of the tub/surround---

Every one I've ever installed was attached directly to the studs---Then the drywall installed to hide the nailing flange.----

Let us know what tub and surround you are installing--post a link if you can---Mike---
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Old 07-09-2011, 09:34 AM   #9
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Quote:
Originally Posted by oh'mike View Post
Look at the installation instructions of the tub/surround---

Every one I've ever installed was attached directly to the studs---Then the drywall installed to hide the nailing flange.----

Let us know what tub and surround you are installing--post a link if you can---Mike---
I always thought they used a few screws to hold them in. However, on 3 of the new ones I have the instructions didn't call for screws.
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Old 07-09-2011, 11:11 AM   #10
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installing bathtub


A few months ago, I had to rip out a shower enclousure that was built "butted" up to the green board instead of properly attached to the studs. It was about 15 years old and a moldy mess. Do yourself a favor and cut back the rock and install direct to the studs. It doesn't automatically make it fool proof, but starts you in the right direction.
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Old 07-10-2011, 10:44 AM   #11
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installing bathtub


that bath/shower will last 5-10 years the way it is now. my opinion is that its not installed properly and you're not using right material for the job. if i were you, i'd do more research and start over. not much lost in terms of cost, it is worth it to start over.

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