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AutoBahned
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sheetrock interior exposure
I've always heard that you can never go thru the paper on sheetrock (or bad things will happen)....
How 'bad' is this?  The poorly done plastering job apparently needed some shaving so the baseboard trim would fit -- a lot of shaving in this spot. What will or can happen when the paper is breached like this? And, now that I have the baseboard trim off, if the exposure IS a problem can I coat the exposed gypsum interior with something (primer & paint? epoxy? caulk?) and make it 'good' again. This in a den/bedroom that is usually at about 60-70 oF usually has a RH of 50-60% and is at the bottom of the sheetrock panel (wood floor shown at bottom). It all sits on concrete slab in a daylight basemnt - towards the 'daylight' part. |
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10-25-2009, 02:30 PM
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Banned
Join Date: May 2005
Location: Earth
Posts: 31,744
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Patch it up. Use some fixall or plaster of paris first, then float the top with mud.
Mud alone at that depth would never dry. It is also easier to sand. If it really bugs you you. Just cut it out and put a new piece in. You can cut out a square or rectangular hole, Take a couple pieces of thin wood ( 1/2" x 1") span them across the hole you just cut, on the backside. Pull them tight against the wall and screw them in place from the outside with drywall screws. Then take a new piece of drywall, precut to the size of the hole you made and then screw that to the 2 sticks with drywall screws. Tape up the joints, mud, sand, fake texture and paint. I wouldn't be to worried about just patching it up. Isn't the base going to cover most of it anyways? Last edited by dipso; 10-25-2009 at 03:04 PM.. |
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10-25-2009, 02:41 PM
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Banned
Join Date: Apr 2005
Location: Columbus, OH
Posts: 18,240
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Just prime it with a thick coat of primer. If your really worried about it use Kilz.
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10-25-2009, 03:54 PM
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Non Compos Mentis
Join Date: May 2001
Location: Off the grid- Almost
Posts: 10,653
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A small peice of fiberglass mesh tape used for seams will help hold everything together. Then a quick skim coat of mud, and you're done.
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10-25-2009, 03:58 PM
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AutoBahned
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I guess I should have emphasized that ALL of the area is corvered by wooden trim.
So what is the minimum I should do to fix it? Primer? |
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10-25-2009, 04:33 PM
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Monkey+Football
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Nothing. Seriously.
It's at the bottom of the wall covered by baseboard. The drywall cooties can't fit through an opening that small.
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10-25-2009, 04:42 PM
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Non Compos Mentis
Join Date: May 2001
Location: Off the grid- Almost
Posts: 10,653
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Quote:
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10-25-2009, 04:49 PM
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AutoBahned
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Good!
so what is the source of this folklore rumor myth thing that if the paper on sheetrock is breached then you are in big trouble? does it only apply in really humid areas? (I grew up in Louisiana so maybe it is berbotten anywhere down there...) |
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10-25-2009, 05:13 PM
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abit off center
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This isn't Chinese drywall is it?
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______________________ Craig G2Performance Twinplug, head work, case savers, rockers arms, etc. |
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10-25-2009, 05:19 PM
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Platinum Member
Join Date: Jul 2001
Location: Leave the gun. Take the cannoli.
Posts: 21,375
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Quote:
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10-25-2009, 06:44 PM
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Used & Abused
Join Date: Feb 2004
Location: Sebring, FL
Posts: 924
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Exposed paper in moist environments is all mold needs to grow. Seal the paper with some kilz or whatever your favorite primer is and you will be fine.
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83 - 944, daily driver 62 - VW Karmann Ghia, never moving restoration "Oh Bother," said Pooh, as he chambered another round. |
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10-25-2009, 07:06 PM
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Registered
Join Date: Jul 2001
Location: Lawrenceville GA 30045
Posts: 7,453
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"If the paper on sheetrock is breached" - in the middle of a wall - it's rather difficult to patch and the texture difference not appear on the surface and (even) after painting.
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Mark '83 SC Targa - since 5/5/2001 '06 911 S Aerokit - from 5/2/2016 to 11/14/2018 '11 911 S w/PDK - from 7/2/2021 to ??? |
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10-25-2009, 07:49 PM
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You do not have permissi
Join Date: Aug 2001
Location: midwest
Posts: 40,471
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I don't know what that metalic thing is, but I think the flooring needs a half inch or so to be able to expand. If it can't move it will buckle over time.
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10-25-2009, 08:11 PM
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AutoBahned
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metallic thing = edge of plastic sheet under the engineered wood floor - it is catching some flash shine
no not Chinese sheetrock thx everyone! |
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10-25-2009, 08:51 PM
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Registered
Join Date: Jul 2008
Location: New Jersey
Posts: 8,910
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Clean the loose crap out of the void. Put new joint compound in the void spreading a very thin layer onto the paper (this will act as glue). Place a piece of joint tape over the area (paper or mesh). Run your taping knife over the tape to smooth. Let the area dry and then put your trim back on.
The myth is and isn't a myth. The paper holds the gypsum in place. Breaching the paper simply weakness the area. When fastening the rock to a stud if the screw or nail breaches the paper it looses holding power. It does not render it useless it only means you need to add another screw a few inches away in sound material. Getting the paper wet is a bigger issue as the paper looses all strength and the fasteners will pull trough the paper the gypsum becomes brittle and will fall apart under it's own weight. |
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10-27-2009, 07:09 AM
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AutoBahned
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thx
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10-27-2009, 09:22 AM
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1969 and 1986 Porsche Targa and Coupe 1720cc and 3
