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Possible wet drywall on ceiling, under 2nd floor bathtub

Possible wet drywall on ceiling, under 2nd floor bathtub


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Old 01-16-22, 01:31 PM
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Possible wet drywall on ceiling, under 2nd floor bathtub

We just noticed a section of drywall on our ceiling that seems water damaged. Unfortunately, it's the section right under our 2nd floor bathtub. See photo. The damaged area is right under the bathtub faucet and drain area, so I'm guessing one of those are leaking.

First things first, could use help on the best way to remove the drywall, to better investigate the issue. How much would I remove? Horizontal ceiling is damaged, but not the adjacent sloped drywall heading up the stairs. I imagine this area is mostly studs?

Thanks in advance!

 

Last edited by PJmax; 01-17-22 at 12:59 AM. Reason: added pic from link
  #2  
Old 01-16-22, 01:54 PM
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Best way is to just get a drywall saw and start cutting, once you get an opening to see where the joists are and where the leak is will dictate the final size.

Do you have access through a wall to tub plumbing? That would be the first thing Id be looking at to access the leak!, you may not need to open the ceiling!
 
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Old 01-16-22, 02:45 PM
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Thanks. No access to the bathtub plumbing unfortunately, but figured the waterlogged drywall section would need to be replaced anyway.
 
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Old 01-17-22, 02:33 AM
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From the pic the drywall doesn't look in bad shape. As far as looks go [assuming the drywall isn't spongy] a coat of a solvent based primer and then latex paint will make it look good again BUT that doesn't address the leak. Any way to identify where the leak is from up top?
 
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Old 01-17-22, 07:25 AM
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Good point. Drywall is not spongy...just discolored with some paint beginning to chip off in one area. Maybe I hang tight and see if things get worse?

If there is a leak, one possibility could be the drain. As seen from the pic below, it's in pretty rough shape. I should replace that regardless.

 

Last edited by PJmax; 01-17-22 at 10:15 PM. Reason: added pic from link
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Old 01-17-22, 07:28 AM
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Somehow you're going to have to get to the plumbing, if there isn't an opening they typ the wall the opposite side is the best place to start!

That picture really doesn't mean much!
 
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Old 01-17-22, 09:51 AM
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You also want to rule out that water isn't getting behind the tile/surround or splashed on the floor and seeping thru there.
 
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Old 01-17-22, 09:52 PM
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You need to find and fix the leak before doing anything with the drywall.
 
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Old 01-20-22, 02:24 PM
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Thanks all for the help. Unfortunately, with the bath surround, I'd either have to remove that or some drywall if I were to thoroughly investigate a possible leak. I'll most likely have a plumber investigate for peace of mind, as I'm a little leery to try any improvements on my own.
 
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Old 01-20-22, 04:17 PM
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Yes, removing drywall is a common thing to do when investigating a plumbing leak above a ceiling.
 
  #11  
Old 01-21-22, 02:14 AM
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When feasible you can remove some drywall in the room adjoining the plumbing side of the tub. Access isn't as good but walls are easier to make a patch disappear than on ceilings.
 
 

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