1/4 or 3/8 on ceiling


  #1  
Old 01-15-14, 07:27 PM
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1/4 or 3/8 on ceiling

Hey guys,
Had a question about my ceiling but let me give you some background to it. We are removing a load bearing wall that separates the living room and hall way (sanded plaster finish ceiling) and the kitchen (flat ceiling but horrible paint job). We are doing a recessed beam and the easiest way to finish this would to re drywall the ceiling. I will get the measurements but i believe it is 3/8 drywall under a layer of concrete board??? Doesnt seem to be a board as it seems to be attached to the drywall but total thickness is about an inch...
What do you guys think???

Ps, we havent moved in yet and are renovating it before we do, no worries about a messy job.
 
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Old 01-16-14, 03:37 AM
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5/8" drywall is usually recommended for ceilings although there are circumstances where 1/2" is acceptable. I suspect you have gypsum lath and plaster. Not sure that hanging new would be quicker/easier than repairing what you have but if I was going to hang new, I'd use 1/2" with screws long enough to secure it to the joists along with adhesive to help prevent sag.
 
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Old 01-16-14, 04:21 AM
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Thanks for the response! Im not sure if i was clear but i do not want to remove the old ceiling, removing one wall took forever and each piece weigh a thousand pounds... Cn i just go right ontop of the existing ceiling
 
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Old 01-16-14, 04:25 AM
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I assumed you weren't going to remove the ceiling. You can patch the void where you took the stud wall down. You could even skim coat or texture the entire ceiling if desired. If you laminate the entire ceiling with drywall you need to make sure the screws are long enough to go thru the drywall, existing ceiling and into the joists deep enough to secure it.
 
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Old 01-16-14, 06:11 AM
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Ahh ok so you would recommend 1/2" over the existing ceiling... 2" screws should do but ill measure the current thickness.

Thanks!
 
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Old 01-16-14, 10:53 AM
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1/2" rock is fine with 16" OC structure. If the structure is 24" OC, then you need 5/8" rock.
 
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Old 01-16-14, 01:16 PM
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Mitch, I think 1/2" will be ok even if he has joists on 24" centers as long as drywall adhesive is used in between the span. Laminating over the existing plaster isn't quite the same as installing the drywall directly to the joists
 
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Old 01-16-14, 01:49 PM
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Yeah, I think you're right, Mark - didn't think about adhesive.
 
 

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