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Old 09-22-2013, 10:39 PM   #16
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7" ceilings drywall vertical or horizontal


I guess I was relying what my inspector said via email and when he did framing and rough electrical inspection. I see lots of people in my area do the same thing. I did have to fire block the walls but they are not concerned with the ceiling.

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Old 09-23-2013, 10:38 PM   #17
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7" ceilings drywall vertical or horizontal


Let us know the answer, I'm always open to new information. The uncoved SPF on a rim is for unfinished basements or crawlspaces. They may accept foil-faced for the fire barrier, depends on local AHJ. Thanks, Gary PS. Is there any code in electrical about unprotected Romex through the joists rather than in conduit being within reach of occupants? At minimum, fill all wiring/plumbing holes in floor above to stop the "stack effect" and fire from reaching attic. Fire stopping; http://www.google.com/url?sa=t&rct=j...IK2ywBJo7aqGbw

Just a matter of time before the codes change and buildings will be much safer; http://www.awc.org/helpoutreach/faq/...rotection.html
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Last edited by Gary in WA; 09-23-2013 at 10:55 PM.
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Old 09-24-2013, 01:30 AM   #18
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7" ceilings drywall vertical or horizontal


Quote:
Originally Posted by Sir MixAlot View Post
My vote is for the horizontal install. Less seams too.
Sorry burst your bubble. this is right out of the USG sheet rock bible. Perpendicular vs. Parallel Application

Gypsum board may be applied perpendicular (long edges of board at right angles to the framing members) or parallel (long edges parallel to framing). Fire-rated partitions may require parallel application. (See Chapter 10 for specific information on fire-rated systems.)
Perpendicular application is generally preferred because it offers the following advantages:
  1. Reduces the lineal footage of joints to be treated by up to 25%.
  2. Strongest dimension of board runs across framing members.
  3. Bridges irregularities in alignment and spacing of frame mem- bers.
  4. Better bracing strength—each board ties more frame mem- bers together than does parallel application.
  5. Horizontal joints on wall are at a convenient height for finishing.
For wall application, if ceiling height is 8'-1" or less, perpendicular application of standard 4' wide panels results in fewer joints, easier handling and less cutting. .
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Old 09-24-2013, 09:35 AM   #19
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7" ceilings drywall vertical or horizontal


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Originally Posted by Nailbags View Post
Sorry burst your bubble. this is right out of the USG sheet rock bible... Perpendicular application is generally preferred because it offers the following advantages:

....
Horizontal joints on wall are at a convenient height for finishing.
I think you got a little confused. Horizontal and perpendicular are the same thing in this case. You are both saying the same thing.
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Old 09-24-2013, 10:20 AM   #20
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7" ceilings drywall vertical or horizontal


Quote:
Originally Posted by jeffnc View Post
I think you got a little confused. Horizontal and perpendicular are the same thing in this case. You are both saying the same thing.
yes I know one is less dificult to spell. and some people don't have as good of vocabulary as others. I also wanted to point out the pros on doing it the best way. But thank you for also point this out too.


Last edited by Nailbags; 09-24-2013 at 10:23 AM.
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