Replies

1. 
   woodhak | Mar 04, 2010 04:14pm | #1

   2 x 4 joists are very small. Are they supporting a roof or floor above? Or just the drywall?

1. 
   oops | Mar 04, 2010 08:23pm | #2

   2x4 joist as you state it, sound like the bottom chords of  trusses. Never seen 2x4 joist on loose/stick framing. Usually 2x6 or larger on new construction. My guess is that if it is trusses the 5/8' rock should be OK.

   Don't know about glue.

2. 
   Yersmay1 | Mar 04, 2010 08:24pm | #3

   There is an attic space above.... not enough to stand up in, though.   There is the potential to store things up there but it isn't being used. 

2. 
   Yersmay1 | Mar 05, 2010 12:19am | #4

   Thank you for this information.  Much appreciated.

3. 
   sunsen | Mar 06, 2010 12:19pm | #5

   I wouldn't hesitate to use 5/8" sheetrock in your application. 5/8" is always a better job.

1. 
   woodworker57 | Mar 07, 2010 05:35pm | #6

   why is 5/8 SR a better material---just curious--WW 57

1. 
   DaveRicheson | Mar 08, 2010 06:17am | #7

   I'm courious about that to.

   16" canters and less than the allowable span for the joist means 1/2" board to me. Save the 5/8" foe 2' oc. Not trussed sono issues with uplift.

2. 
   sunsen | Mar 10, 2010 12:26am | #9

   5/8" is more rigid and gives

   5/8" is more rigid and gives a flatter surface, which is what you want. It'll line those 2x4's right up. That's why it's always a better job.

4. 
   MarkH | Mar 08, 2010 06:29am | #8

   I'd use 1/2" drywall, but I

   I'd use 1/2" drywall, but I would not hesitate to use 5/8" either.  At 16" on center the 5/8" would not be required.