DIY Home Improvement Forum banner

1 - 13 of 13 Posts

·
Registered
Joined
·
137 Posts
Discussion Starter #1
quick question - about to put my ceiling up, normal drywall, going on 24inch joists, for a bathroom - do I screw & glue, or just screw?
 

·
Registered
Joined
·
25 Posts
you couls just screw it. with 24" oc joists you may want to consider 5/8" drywall. anything less may tend to sag in between the joists under humid conditions.
 

·
Lic. Builder/GC/Remodeler
Joined
·
7,556 Posts
24" O.C.? I's say to add strapping at 16" OC. Then install 5/8" GWB. Glue and screw.

If it's a large ceiling, and your trusses are moving, that is a whole different installation.
 

·
Registered
Joined
·
62 Posts
24" O.C.? I's say to add strapping at 16" OC. Then install 5/8" GWB. Glue and screw.

If it's a large ceiling, and your trusses are moving, that is a whole different installation.
Can you expand on this? I am drywalling a 24'x24' cathedral cieling (trusses, not rafters), they are 24" on center and I am using 5/8" drywall, 12 foot long peices.

Should I use screws and glue both? TIA
 

·
Drywall contractor
Joined
·
2,151 Posts
If you go with the strapping on 16" centers you can use 1/2" rock. You need 5/8" for 24" centers. Always use adhesive. Less fasteners necessary, thus fewer "pops".
 

·
Drywall contractor
Joined
·
2,151 Posts
Maybe I should have phrased it less chance for ANY "pops" which happen when lumber "moves". Lumber expands/contracts during heating/cooling seasons. New lumber dries out and shrinks to some extent. This can cause fasteners to "protrude" back out of the stud slightly as they don't move with the lumber. Thus you get a nail/screw "pop". A common occurrence. You may not get any going into seasoned lumber. And humidity is still a factor in L.A. if you take a hot enough shower.....
 

·
Registered
Joined
·
429 Posts
New lumber dries out and shrinks to some extent. This can cause fasteners to "protrude" back out of the stud slightly as they don't move with the lumber. Thus you get a nail/screw "pop". A common occurrence. You may not get any going into seasoned lumber
hmmm- maybe I can leverage that point - to feel a bit better about being a slow poke and taking forever on my project - the framing's been up for about a year and a half now - does that mean it's seasoned and possibly fewer pops when the drywall goes up?

feel free to throw me a bone here :yes:
 

·
Drywall contractor
Joined
·
2,151 Posts
You're pretty safe as far as "shrinkage" goes I think. Lumber still "moves" during "seasonal" changes in heating and cooling (and at times for other unforseen reasons such as settling). I still recommend using adhesive. If you have a wall in your house that you know is not glued, bang on it with the heel of your fist. You can hear the board "rattle" against the studs (interior non-insulated wall). The same wall with glue won't do that. If you ever have to patch a wall that has been glued, when you tear out the piece to be patched, the backing paper on the rock will still be on the stud when you pull the damaged piece out. The likelyhood of "seasonal" lumber movement causing fasteners to "pop" is greatly diminished with adhesive....
 
1 - 13 of 13 Posts
Top