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Repair missing paper and tile over it?


nzerac80's Avatar
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Join Date: Dec 2012
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CANADA

12-19-12, 10:42 PM   #1  
Repair missing drywall paper and tile over it?

Hi, my first post here.

So I am retiling my washroom (shower area), and I just removed the old tiles from the wall, leaving behind a badly damaged greenboard, with holes and large sections of paper missing, somewhere with brown paper showing, somewhere with bare gypsum. I am wondering how can I repair all of this to prepare it for mortar and the new tiles (12 inch)?

To break it down, I need advice on

1) holes (I repaired some with fiberglass mesh. Is this enough?)
2) brown paper exposed
3) bare gypsum

Thank you very much for any help. I will try to post a picture later if you need it.


Last edited by nzerac80; 12-19-12 at 11:24 PM.
 
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Seattle2k's Avatar
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12-20-12, 12:54 AM   #2  
First, understand that your thinset/mastic won't stick to bare gypsum or joint compound. You'll want to prime it before tiling.

Holes - small holes, I like to prefill with joint compound and tape over them. Large holes - cut out and patch.


Bare gypsum should be treated like a hole. If the bare gypsum areas are small, you can tape over it and give a light skim coat of mud. I don't like fiberglass tape, but if use it if you have it. For large bare gypsum areas, I prefer to cut out the sheetrock and replace it.

I wouldn't worry about exposed brown paper.

 
nzerac80's Avatar
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12-20-12, 01:31 AM   #3  
I didn't know about the primer. Thanks. Which should I use?

Is there really nothing to be done about bare gypsum areas?

 
nzerac80's Avatar
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12-20-12, 01:52 AM   #4  
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It doesn't let me post the links. It's ************ instead of the asterixes.

 
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12-20-12, 05:03 AM   #5  
If this is in a shower area, all the sheetrock must be removed, period. It is not an acceptable substrate for tile. Once you have it all down, install insulation and a vapor barrier plus concrete backer underlayment on the walls, sealing the seams and corners with compatible mesh tape and thinset. You can then confidently install your tile using thinset.
If you are trying to post pictures, Tiny Pics won't work. Try this: http://www.doityourself.com/forum/el...your-post.html

 
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