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Old 03-30-2011, 11:23 PM   #1
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Gap between sheets of drywall


Say you put up some drywall (ceiling) and there are a few places where you had a 1/4" gap. Would you fill the gap with mud before taping and finishing? or tape and finish over the gap? I plan on using the self stick mesh tape. Thanks

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Old 03-31-2011, 12:40 AM   #2
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Gap between sheets of drywall


pre fill the gaps with Durarock and let completly dry.

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Old 03-31-2011, 12:42 AM   #3
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Gap between sheets of drywall


Also, paper is a much better choice in corners. You can fold it and make it fit the corner tight.This is not possible with mesh tape.
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Old 03-31-2011, 01:18 AM   #4
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Gap between sheets of drywall


Paper tape is stronger and has less "give". Use mesh only on flats with setting type compound, at least on first coat.

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Old 03-31-2011, 08:48 AM   #5
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Gap between sheets of drywall


Thanks everyone.
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Old 03-31-2011, 08:52 AM   #6
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Gap between sheets of drywall


If you read books on drywalling they say to fill the gaps with drywall compound. The taping layers of compuond will adhere to it better. If the gaps are large use a little mesh tap to keep the mud from falling out. Then go over that witht he paper tape.
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Old 03-31-2011, 10:41 AM   #7
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Gap between sheets of drywall


do you have these gaps in angles or flats and butts
either way i strongly disagree with all answeres so far
if this is in flats they will bust out and drop or crack
the proper way is to cut you out strips of sheet rock
take drywall glue and glue in to gap
place cut in, pressing it deep into the crack or until flat
let dry
any acsess glue scrape off
then paper tape
mesh tape is a fast fix and the only place i would use it is on exspansion joints
these joints are not normally found in residential mainely in commercial buildings
never ever ever put mesh in your angels never no matter what try to make a mesh angle never dont do it
did i make my self clear dont do it you will thank me if you listen
what happens is the edge of your knife cuts the 90 degree angel as you finish
plus the fibers causes little clicks in the angel you wont see them until paint
who ever said that you can finish your angle with mesh tape is not some one you want to take advice from
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Old 03-31-2011, 11:06 AM   #8
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Gap between sheets of drywall


The problem with this site is that you have to many people without experience telling to many people without experience how to do construction work. If you think that you have all the answers then you aren't really a help to the people you are trying to help. Like the old saying "there are a thousand ways to skin a cat". I take issue with those that claim mesh tape can't be used in the interior angles. I have used it for over 35 years. I guess you just have to have the skill to make it work. I can tape small jobs in one day using mesh tape and hot mud. I have never had any problems and my license has never been sued. I work for some of the best building contractors in my area without ever having a problem with the quality of my work. Now the statement that should be made is that for a beginner, maybe they should stay away from mesh tape because it is best used with hot mud, and hot mud is not as forgiving as box, or bucket mud. And so the question was how to fill a 1/4 inch gap. Give me a break, its a 1/4". If you take mud straight out of the box or the bucket that is premixed it will be thick enough that you can prefill the gap with out any problem what so ever ( letting it dry before taping ). Now if that gap is larger, then you might have better luck with hot mud because you can mix it even thicker. You can also, like was stated, use mesh tape to help hold the mud in place if the gap is to big to let the mud hold by itself.

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Old 03-31-2011, 11:21 AM   #9
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Gap between sheets of drywall


point taken but ill also remind you that he is talking about on the cieling i will argue that a 1/4 inch gap is bad and i guess that makes the difference between you and me on finishing and maybe even area.
i was taught if you can slide a nickle you tape if you can stick a finger you replace with rock, i guess it all comes down to what you are taught
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Old 03-31-2011, 11:28 AM   #10
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as far as mesh tape i would never advise a person to use mesh tape in a angle i suppose some one taught you how to do this or you learned it over time on how to perfect the art but the average dyi dont have those years of experience
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Old 03-31-2011, 05:56 PM   #11
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Gap between sheets of drywall


I'd fill with a 20 minute set to fill all gaps.
Paper tape and 90 minute
followed by fill coat of 90 min
finish float coat with topping mix.

(Mesh in corners, not a good idea to broadcast to diy'ers..big fail waiting to happen)
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Old 04-01-2011, 12:29 AM   #12
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Gap between sheets of drywall


From the horse's mouth- pp. 10-- 4.6.8 Gaps 1/4" and smaller= prefilled w. joint compound.
4.6.8.1 Gaps 1/8" and smaller- prefilled w. either setting or drying compound.
4.6.8.2 Gaps 1/8" and greater= setting type compound.
http://gypsum.org/pdf/GA-216-2010.html

Interesting on mesh and paper tape from USG; http://www.usg.com/rc/technical-arti...e-en-J1190.pdf

http://www.usg.com/rc/data-submittal...ata-MH1178.pdf

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Old 04-01-2011, 11:38 PM   #13
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Gap between sheets of drywall


Thanks Gary. That's good information. I'm re-thinking the tape now.
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Old 04-02-2011, 10:48 AM   #14
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Gap between sheets of drywall


Just took a look at that tape write up. Based on that there is really no reason to use mesh tape......ever. Why use it when you always get the best joint with paper.
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Old 04-02-2011, 11:27 AM   #15
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Gap between sheets of drywall


Quote:
Originally Posted by beerdog View Post
pre fill the gaps with Durarock and let completly dry.
Durabond
Durarock is the sheet stuff

But my Beerman is right.
Fill excessive gaps with durabond.
It won't shrink or bubble like mud does.

Just be careful that you completely wipe it smooth 'cuz it's a B!TCH to sand.....

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