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Old 05-11-2011, 12:29 AM   #1
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if you are doing a fire rated room do have to stagger the corned?
in a doble layer of sheet rock

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Old 05-11-2011, 07:12 AM   #2
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What is a "fire rated room"? Like a garage?
Were you trying to say, stagger the corners in a double layer of sheetrock?

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Old 05-11-2011, 07:25 AM   #3
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Typically seams do need to be staggered to meet a fire rating on a double layer installation.
Since people don't do fire wall installations without being required to I'm going to guess there is some sort of compliance issue.
In order to avoid problems with approval I suggest you go to the USG site. They have firewall construction details with UL approval. Build the wall to the most appropriate standard for your situation. That way you can provide documentation that you have met whatever needed requirements.
This isn't hard. The Specs just detail out seam, screw, taping installation.
Good luck
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Old 05-11-2011, 11:07 AM   #4
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Good advice from MarkusAIC. I would stagger the corners......
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Old 05-11-2011, 01:38 PM   #5
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Originally Posted by nicoya View Post
if you are doing a fire rated room do have to stagger the corned?
in a doble layer of sheet rock
typically for fire rating you would use 5/8" and you would have to just make sure it is it taped. and any penetrations ion the wall need to be properly sealed..ie. collars around pipes passing through the wall etc.
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