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Mesh Tape Question???

 
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Old 01-16-2007, 10:26 PM   #21
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Re: Mesh Tape Question???


I have done plenty of drywall and solely use the mesh. I have not had a callback on cracks either. Most of the repairs that I have done with cracking have been paper tape that was coming apart in corners where the ceiling meets the walls. Who knows if it was installed right, but I can't remember doing any mesh repairs. Just a personal preference I guess. My work is not really on a large scale so the price issue does not come up.
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Old 01-17-2007, 01:14 PM   #22
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Re: Mesh Tape Question???


I think the mesh will work fine AS LONG AS THE PROPER MUD is used. It's like a concrete slab. The mesh is just there to give some support to the slab, not to be the actual load bearing product. Would you use the same analogy for a concrete slab? If so, then they should not be using mesh but rather solid sheets of metal in the slab but they use mesh because it's more affordable and serves the purpose.

Same with mesh tape and paper tape. The paper tape is not supposed to be some type of load bearer in the event of settling between the section on either side of the joint. The hardened mud is providing the load bearing in that case. The paper is just an additional support factor. Technically, mesh should provide a better support, much like mesh in a concrete slab. The mud would be around all parts of the mesh and harden so the mesh becomes an integral part of the joint, whereas paper actually separates the mud so that the mud on either side of the paper never really get a chance to join together and harden (although it does "soak" into the paper to some extent). I think they both have their pluses and minuses and I have used both. I generally do use paper more often since it's more affordable (aka cheaper) and generally is thinner than the mesh so butt joints benefit from paper.
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Old 01-17-2007, 04:37 PM   #23
 
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Re: Mesh Tape Question???


They make the stuff so I try and follow there specs.
I use the mesh & dura bond for repairs and small rooms. Never would use mesh tape on butt seams or inside corners . All butt seam and inside corners move from lumber shrinkage and the paper tape gives the seam that extra hide/hold.

Form the usg Gypsum construction handbook

A joint treatment system (reinforcing tape and joint compound) must provide joints as strong as the gypsum board itself. Otherwise, normal structural movement in a wall or ceiling assembly can result in the development of cracks over the finished joint.

Repeated joint strength tests conducted at the USG Research Center have shown that joints taped and finished with conventional fiberglass leno-weave mesh tape and conventional joint compounds are more prone to cracking than joints finished with paper tape and conventional joint compounds. This is because fiberglass mesh tapes tend to stretch under load, even after being covered with joint compounds.

Permanent repair of these cracks is difficult. Accordingly, USG does not recommend using conventional fiberglass leno-weave mesh tape with conventional ready-mixed, powder or chemically setting compounds for general drywall joint finishing.
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Old 01-17-2007, 07:44 PM   #24
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Re: Mesh Tape Question???


Non-sandable durbond?? Didn't know there was such and animal. Not sure I will ever be good enough with the mid knife, though.
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Old 01-17-2007, 08:25 PM   #25
 
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Re: Mesh Tape Question???


non sandable I can't use that LOL If you are in the business of drywall be it remodel or repair or drywall it'self you will learn when and where to use both. Trial and error are the worlds best teacher I can explain it to you but untill you do it you still will not know.
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Old 01-18-2007, 01:08 AM   #26
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Re: Mesh Tape Question???


I like this thread, it makes me smile.
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Old 01-18-2007, 11:06 PM   #27
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Re: Mesh Tape Question???


Is that a paper smile or mesh smile?
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Old 01-18-2007, 11:45 PM   #28
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Re: Mesh Tape Question???


Quote:
Originally Posted by LennyV-NHSNOLA View Post
Is that a paper smile or mesh smile?
Vertical paper smile!
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Old 01-21-2007, 07:20 PM   #29
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Re: Mesh Tape Question???


Smile all you want Drywall1, I'm laughing... Load bearing drywall mud !!!
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Old 03-27-2007, 09:03 PM   #30
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Re: Mesh Tape Question???


hi all.

It seams(get it?) that even on this thread, the complaints about mesh tape stem from using it with premixed mud.

That is how I see people do it all the time. I ask them if they know they are supposed to use hot mud and they just look at me blankly.

When you compare costs of doing work (Paper vs. Mesh) you need to look at all the steps. One guy running with a roll of tape and a knife can get almost all the seams taped before the rest of the stuff is brought into the room. I actually like to run down the seams with a damp rag before I run the tape, but that is just me.

Then one guy mixing small quantities of hot mud( do it in a bucket with a paddle mixer) and the other guy applying. The applying guy stays just ahead of the mixing guy and there is no waste. The last bit can be mixed in a 1 gallon bucket with a paint mixer. I just run the drill backwards and forwards to clean the mixer.

if you are working by yourself, then use a slower mud, 40, 90, 120,+ and only mix what you can apply before it goes off. Once it starts going off, scrap off your hawk (I prefer a hawk to a pan) and your knives (I still use knives more than a trowel) and quick wipe with a sponge and you are clean.

By the time you finish first coating the room, you can start back at the beginning and do the second coat. For me, this is the fill coat, so mix a lot of mud. By the time you finish the room, you can apply the third coat. Here it can be another hot mud, or premix, pulled tight. I sometimes will apply a 4th coat of premix ,so I don't have to sand hardly at all.

So you save two days of labor which more than makes up for the extra cost of mesh and the same cost of hot mud. If you look at the USG tables, it takes less hot mud that premix to do any size job.

Finally corners, yes NO-Coat is very expensive compare to paper tape and corner beads, but again you use less mud, less drying time even with premix, and higher quality since they are guaranteed not to crack as they attach to the drywall only, not the framing underneath. I expect StraitFlex is the same, but I haven't used it yet.

None of this is to disparage any of the highly skilled 20 year veterans here. It is just that some of this stuff wasn't around 20 years ago, and you might find it works good enough now to change your methods.

Now none of this may mean anything to the large commercial taper, who even with general purpose mud running flat out, runs out of day before he can put on a second coat, so drying overnight is OK with him. Use the right tool for the job!

Looking forward to your article Greg Di.
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Old 11-02-2007, 11:39 PM   #31
 
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Re: Mesh Tape Question???


i only use mesh tape , done hundreds of commercials and residentials , no problems at all ! once i had no paper for corners and i used it , it came out neat !

cheers

Last edited by BoB The Fixer; 11-03-2007 at 09:44 PM.
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Old 11-02-2007, 11:42 PM   #32
 
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Re: Mesh Tape Question???


drywaller by the way is there any means u can teach me how to use bango , honestly i bought it and i faild in using it lol

thanks
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Old 11-03-2007, 02:08 AM   #33
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Re: Mesh Tape Question???


I also have been doing drywall for the past 13 plus years. I do remodeling projects and I have always used paper tape. Plaster guys use mess tape because I believe that is what it was made for originally, correct me if I am wrong. I never have any call backs on paper tape. I have tried mesh...the problem with mesh is that if the mud is not pushed through the tape properly it will crack, and I have seen alot of sooooo called pros with cracks from useing mesh. Problem is that alot of homeowners think that the mesh is soooomuch easier because they can apply without mud first with the adhesive on the mesh. Mesh is lame!!!! By the way....the expert guy that can do a bath in a day is very SLOW. I tape and first coat fifty sheets of 12 foot board in a day. Tape and second coat. Thats all with pan and knifes. A bathroom in a day...big deal....
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Old 11-03-2007, 03:27 PM   #34
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Re: Mesh Tape Question???


I think you will find that most complaints about mesh tape cracking come from morons using drying type ready mix rather than setting types(hot mud)

Taping 12 sheets is a far cry from doing a bathroom. It is easy to run all out on long seams in a big room. Turning around in a small space, all the corners and details, plumbing and electrical penetrations, and the fact that the air doesn't move well in these small spaces for drying, all contribute to it being a slower process.

Mesh is not lame. I will have to look into the "quote" from the USG handbook though. It is not what I remember reading.
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Old 11-03-2007, 04:13 PM   #35
 
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Re: Mesh Tape Question???


I'm a carpenter and hate taping but heres my pepper....guys get used to what they like...I've had subs use both...they didnt like the mesh in the corners because of the way the knife skips, not because of cracks....I've only had a couple cracks in my years and I prep my customers for this because moisture plays such a pivotal role in the drywall process. Recently, with the use of sprayfoam insulation, I find the paper holds moisture longer because it only has one side to escape...but that doesnt make mesh better...I use a Bosh flush-cut saw and my lead uses a jap banjo saw...who cares
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Old 11-03-2007, 04:55 PM   #36
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Re: Mesh Tape Question???


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Last edited by Mike Finley; 02-17-2009 at 12:27 AM.
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Old 11-03-2007, 10:24 PM   #37
 
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Re: Mesh Tape Question???


Good thread!

Rarely do a whole house. repairs remods & additions mostly.
I feel paper is superior to mesh.
I use a lot of mesh w fast set, never drying premixed mud.
Mesh on the flats, paper in corners.
If using paper in corners w fast set, I prefer to wet the paper
so it doesn't suck moisture out of the fast set and seems to bond better.
I only use 5min and always bed the mesh.

r
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Old 11-04-2007, 12:11 AM   #38
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Re: Mesh Tape Question???


Thanks Mike,

That was what I remembered reading.
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Old 11-04-2007, 08:53 PM   #39
 
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Re: Mesh Tape Question???


I was taught "old school" by my husband, a 20 year finishing veteran. We use paper tape for whole house new construction, and for garages. But we also do modular homes, which need to be finished in a day or two, from hanging and finishing the drywall in the "marriage lines", repairing all cracks in the house from shipping and getting all the painting done, as well as the carpet, trim, etc. We use mesh tape on everything - cracks, seams, etc. with durabond 90 and never have a call back. These homes settle quite a bit while the frames relax on their basements and piers, so to not have any cracking occur, I'd say it's a decent product.
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Old 11-05-2007, 07:00 AM   #40
 
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Re: Mesh Tape Question???


All my closet seams, short tapes next to doors, super low seams and the seam on walls up top that looks like a triangle gets mesh taped before I prefill. Meshing them really saves a taper a lot of time.
Then of course all my corner bead gets meshed to prevent cracking.

Again, like stated above you MUST use hot mud on all mesh tape. Brown bag is fine but I'm lazy and mostly use easy sand over my mesh tape.

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