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Hi there, I'm an electrical contractor in Tucson that is being sucked into a side job with a home owner friend doing drywall. I do have some experience but I'm no expert by far! I spent the better part of an afternoon going through the forum resources but if the answer was there, I must've missed it. :jester:He's wanting to fix up his mother's house that had 12 by 12 ceiling tile in the living room that were mounted on 1 by 4s on 12" centers, run perpendicular to the 4 by 6 rafters on 32" centers. Question is will this be adequate for 1/2 drywall? Or should we replace the 1 by4s with 2 by4s laid flat on 16" centers? And will it be OK weight-wise to blow in cellulose on top of the drywall? Thanks in advance for your thoughts and guidance, I am a fish out of water on this one! --Steve
 

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Hi there, I'm an electrical contractor in Tucson that is being sucked into a side job with a home owner friend doing drywall. I do have some experience but I'm no expert by far! I spent the better part of an afternoon going through the forum resources but if the answer was there, I must've missed it. :jester:He's wanting to fix up his mother's house that had 12 by 12 ceiling tile in the living room that were mounted on 1 by 4s on 12" centers, run perpendicular to the 4 by 6 rafters on 32" centers. Question is will this be adequate for 1/2 drywall? Or should we replace the 1 by4s with 2 by4s laid flat on 16" centers? And will it be OK weight-wise to blow in cellulose on top of the drywall? Thanks in advance for your thoughts and guidance, I am a fish out of water on this one! --Steve
Assuming they are shimmed out and leveled for the previous ceiling, I'd leave them to avoid a bigger headache. But pre-drill and screw them into the joists first. If you're up for it, glue and screw some 1x to the backs of every other furring strip to add additional rigidity. Probably don't need it, though, but it's easy enough to do. Good luck.
 

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Check how the 1X4s are attached to the joists. I've seen a lot of these done with a single smooth shank nail. If that's what you have, I wouldn't trust the fasteners to hold with the drywall weight. I'd suggest screws, if they don't split the 1X4s, or you could go with ring shank nails.
 

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I would add a 1X4 at each center making the spacing 16"OC.And screw them all securely. Then use 5/8" drywall.Done this many times in my area with no problems.
 

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what does the 1x4 attach to? Just the rest of the strapping?
That's what I read. Basically he's saying add a stiff leg over the existing 1x4's parallel to the 4 x 6's. You could add a few 2x4/2x6 blocks over the stiff leg 1x4, & fasten to the 4x6's, but it sounds like he's had good luck without.
 

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You have the existing 1X4's at 32"oc.I was talking about about adding an additional 1X4 between these making the spacing 16"OC.It will also work out better for your laps and give the added support needed.
 

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You have the existing 1X4's at 32"oc.I was talking about about adding an additional 1X4 between these making the spacing 16"OC.It will also work out better for your laps and give the added support needed.
The existing 1x4s are @ 12" centres, the rafters are on 32" centres so the strapping is spanning 32", granted there's lot of it but I don't think i'd be comfortable spanning more than 24" OC without some additional 2x material
 

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Refasten the 1x4's to the rafters. The 32" span for the 1x4's doesn't worry me at all.
Me either. :no:
I think the 12" OC makes up for the extra 8" of the 32" span. :thumbsup:

As previously said, how the furring strips are attached is the main thing. There should be either two ring shank nails or pre drilled and screwed wherever they are attached to the rafters.
 

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How is this a professional question, and not a DIY? This is the OP's first and so far only post
He has his trade listed as commercial electrical. So I was giving him the benefit of the doubt.

But, it would be nice if the OP would post an intro in the Introduction section of the forum---> http://www.contractortalk.com/f44/

Or we might start to think otherwise... :whistling
 

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Some people see strapped ceilings all the time, some just about never see them. All depends on where you work and how old the houses are.
 

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He has his trade listed as commercial electrical. So I was giving him the benefit of the doubt.

But, it would be nice if the OP would post an intro in the Introduction section of the forum---> http://www.contractortalk.com/f44/

Or we might start to think otherwise... :whistling
There is a big difference in a long time poster asking how to do something outside their trade and a brand new poster doing the same. It would be nice if they added to their bona fides first.

Similar to this post: http://www.contractortalk.com/f48/acceptable-work-151374/#post2069069

Posts such as the two illustrated should go to the DIY forum
 

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There is a big difference in a long time poster asking how to do something outside their trade and a brand new poster doing the same. It would be nice if they added to their bona fides first.
It seems a number of contractors sign up because they have a question, frequently about their own house, and it's outside their specialty. Once they've put their question out there, they start contributing. Or disappear.
 
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