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Old 06-14-2012, 12:04 PM   #1
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Drywall weight - wall


I asked this question (amongst others) in the drywall forum, but thought B&C might be more appropriate for this particular question:

Are 3 layers drywall (two 5/8", one 1/2") on each side of wall (total 6 sheets) too much weight for the wall?

The wall in question is a solidly built 20' long staggered (2x4...total depth 5.5") stud wall that bears only the weight of the 2x8 joists for that room (16" centers). The joists are also screwed into a perpendicular joist from the next room. The wall is on a concrete slab.

There are already 2 layers of 5/8" on each side. 1st layer using 1 5/8" screws, 2nd layer 2.5" screws. 3rd layer will use 3" screws.

My thinking is that it will be fine, but I'd rather know that it'll be fine.

Thanks!

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Old 06-14-2012, 12:14 PM   #2
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Drywall weight - wall


I am curious, are you trying to make a 3 hr. rated fire wall on both sides of this wall?

Andy.

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Old 06-14-2012, 01:41 PM   #3
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Drywall weight - wall


Sounds like that or a sound proof torture chamber.
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Old 06-14-2012, 02:09 PM   #4
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Drywall weight - wall


Correct on the sound proof chamber (less torture, of course). Just want to make sure I have no structural issues before proceeding with the final layers.
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Old 06-14-2012, 07:59 PM   #5
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Drywall weight - wall


In case someone else is looking for answers: According to the sources I've talked to, no structural problems with 3 layers each side.

Search terms: Soundproofing, green glue, drywall weight, multiple layers
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