Replies

1. 
   Guest_ | Apr 11, 2000 04:06am | #1

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   Darn. Everyone else has drywall that, if it move, it sags. Yours would have to be the exception.

   I'll bet it was caused by a combination of insulation and venting which caused the higher air pressure, which is always at the ceiling, to bow the rock upwards between the rafters and installing the rock parallel to the rafters compromised the inherent strength of the longitudinal grain.

1. 
   Guest_ | Apr 12, 2000 04:56am | #2

   *You don't have any idea what you just said, do you, Ralph ??LOL

1. 
   Guest_ | Apr 12, 2000 06:52am | #3

   *Certainly, you will find that my verbiage is most veridical, verifiable, and, on occasion, vexatious, but never vituperative.I attempt to bring a modicum of viridity to my conversations, such as they are, and should such be voluminus or not, they should not be vapid or vacuous.

1. 
   Guest_ | Apr 12, 2000 07:15am | #4

   *Next month you get the 'w' chapter ?: )

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   Guest_ | Apr 12, 2000 08:01am | #5

   *Nah, next month ah goes to A, actually attempting to address allegedly anfractuous, anomalous and annoying anticlimactic argumentations, assuasively assimilating and assessing all aspects.Y'all be in attendance? :)

2. 
   Guest_ | Apr 12, 2000 08:17am | #6

   *Absolutely !!!: )

3. 
   Guest_ | Apr 12, 2000 09:30am | #7

   *You two gonna do this act at PeteFest? Maybe Abbott and Costello as a warm up? Who's on first? Jeff

2. 
   Mark_Amende | Apr 12, 2000 07:49pm | #8

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   Thanks Guys, you've been alot of help.

3. 
   Guest_ | Apr 13, 2000 12:03am | #9

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   LOL

   Flattery will get you nowhere, Mark

   : )

   Did you really mean that the sheetrock is arcing, (as in rising), between the joists ?? Or is it sagging between them ?

   If arcing, the least labor way to fix it would probably be another layer of sheetrock going the opposite way, as has obviously already been suggested to you. And now that I have thrown my way less than adequate hat into the ring, someone a lot smarter than me will come along with a better answer.
   : )

1. 
   Guest_ | Apr 13, 2000 04:26am | #10

   *Mark, If by "arching" you mean "sagging" (the drywall is lower between the joists), a lot has been written here on the subject. Try using the Search button and typing "sagging drywall" for a good selection of advice.If the arching is up, like those above have seemed to understand your question, I have no idea why, so please disregard this. Hope this helps. Good luck. Rich.

4. 
   Mark_Amende | Apr 13, 2000 07:39pm | #11

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   I really mean arching (as in rising) between the joists. It seems the consensus to this problem is another layer of drywall running in the other direction.

5. 
   Guest_ | Apr 14, 2000 01:01am | #12

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   I think You have gremlins with straws up in the attic...

   Seriously, though, is there some sort of power ventilation present above the sheetrock ? (Fan in an exhaust vent, etc)

6. 
   SCOTT_E._CHADBOURNE | Apr 17, 2000 04:01am | #13

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   Mark,
   The sheetrock may have taken a "set" at the drywall suppliers warehouse due to either insufficient support under the drywall, high moisture conditions or a combination of both. Make sure to have your friend confirm the bottom load rating on his trusses before adding alot more weight. 1/4" rock is available but cost as much or more than 1/2". There are about 3 brands of drywall that aren't worth having. I always try to stick with USG or Gold Bond when possible. Hardi-board isn't bad either although their paper is a little dark and harder to prime. Bet the insurance company will balk at replacing ceiling.

1. 
   Mark_Amende | Apr 17, 2000 05:28pm | #14

   *Luka, no straw-sucking gremlin spotted.Scott, thanks for the advice.The mention of the insurance company does raise another annoyance. Who's liable for the ceiling? The sheetrock company has stated there is nothing wrong with the sheetrock, only the way it was installed. The hanger insists it was put in correctly. The hanger did come back and screeded plaster between the high point at his expense, but as I mentioned, that only provided marginal improvement. It still is unacceptable. The rocker says he won't do anything else. Everyone is balking. Rather than see my buddy blow a gasket trying to negotiate an acceptable resolution, it seems it would be in his best interest to turn this problem over to his lawyer to settle.

7. 
   Guest_ | Apr 17, 2000 07:39pm | #15

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   mark-

   How large an area are you talking about? Is this problem confined to a few rafters or the room in general? I have a hard time believing there is enough difference in air pressures in the room to cause 5/8" board to cup.

   I would think the parallel installation would be the place to look for a culprit. I have never seen board installed that way and accepted it as proper.

   Laminating new board over the old, perpindicular to the rafters should work if it doesn't create too much load. Lath and plaster would be ideal if the rafters can handle it.

   Where is the builder in this problem? If it was a house I built I'd be spearheading the repair...

1. 
   Guest_ | Apr 18, 2000 02:38am | #16

   *> The rep diagnosed that the sheet rock was installed in the wrong direction (parallel with the rafters)>The hanger insists it was put in correctly.Can the rep supply any written installation instructions that specify "install perpendicular to rafters" and that predate this job. If so, and the stuffi washung parallel, then I would think the hanger has no leg to stand on.At the very least the owner should be keeping a log of every contact he makes about this. Names, dates, what was said/claimed, etc. A preliminary chat with a lawyer might not hurt either.Rich Beckman

8. 
   Scott_Chadbourne | Apr 18, 2000 05:25am | #17

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   Mark,
   A couple more questions. Drywall was in short supply this past fall and winter. Product tends to hit the loading docks a little sooner when prices are high and may be have a litle shorter time period in the drying ovens of some manufactures. Was this rock hung this past fall or winter? Was there a good source of heat in the house so the rock dried properly from taping and finish coats? Is it actually the rock or has the paper delaminated? It sure seems like a high moisture condition occured somewhere that caused the rock to ripple... either at the supplier, building site, or manufacturing possibly. I definately wouldn't want a double layer of rock on my ceilings. Just my opinion. Good luck to your buddy.

1. 
   Mark_Amende | Apr 21, 2000 05:45pm | #18

   *The area is roughly 27'x 27' and the house was built last summer. The owner acted as the general in the construction. The sheetrock company has come back and said it will contribute 15 sheets, but the hanger says if they are forced to redo the ceiling, they'll hang it the exact same way. It seems a sad, ugly affair.

9. 
   Guest_ | Apr 21, 2000 06:05pm | #19

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   why won't the hangers change the direction of the second layer?

   absurd...

   we dont get into that because we furr our ceilings ..

   but i don't see why they would hang paralell to the truss chord...it's begging for bellys.. each sheet is screwed to one truss , lapped over the middle one and screwed to the third... that 's just stupid.. they get no benefit from the 8 ft.. or 12 ft.. dimension and they arn't staggering their joints either i bet...

   blackball the hangers.. they either do it my way.. or we use someone else....they can of course show where this is the recommended method of hanging?????

   seems like someone been screwing around with this long enough.. get a different drywall contraactor.. cover it with 3/8 in the other direction and refinish it....even better do the same thing only use blueboard and skim coat plaster...

1. 
   Guest_ | Apr 21, 2000 07:55pm | #20

   *Mike, If the hanger agrees to hang it different the second time, he is, in effect, admitting he did it wrong the first time. Liability issue . . . Eric

1. 
   Guest_ | Apr 21, 2000 08:48pm | #21

   *right , but it's time to move on .... what is the total liability..?$400 ...$700 .... forget about the hangers helping... move them out of the solution picture..send 'em a lawyerly letter tellin em they do it your way or you will seek legal remedies.. then proceed with another drywall contractor...

1. 
   Guest_ | Apr 21, 2000 09:18pm | #23

   *I agree with Mike. Time to tell the hanger (finisher?) his options are used up. This is how you will hang and finish, this is the time frame you have to work in, this is how much I will be paying another contractor should you fail to respond, and this is the name of the lawyer who will be hounding you for reimbursement of costs incurred...

10. 
    Mark_Amende | Apr 21, 2000 09:18pm | #22

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    A friend of mine recently had a new home built. The trouble is a wavy sheetrock ceiling. The ceiling is arching between the rafters. A sample of the 5/8" sheetrock was sent for testing, and the results came back faultless. The sheetrock company representative recommended screeding plaster between the high points to smooth the ceiling. That didn't work, the waves are still there. The rep diagnosed that the sheet rock was installed in the wrong direction (parallel with the rafters). Is that possible? The plan is to put another layer of sheetrock in the opposite direction....unless someone has a better idea...anyone?