We are building our own home to earn equity program. My husband hung our drywall using 1/2 inch sheets on the ceilings with 24" in between joists. We have been told by our drywall finisher that the ceiling will sag because we were supposed to use 5/8. Is there anything we can do now to correct this without redoing?

AltaVista

In my opinion, you are just Fine. As long as you've done the proper amount of 'edge and field' nailing (or much better would be using screws) there should not be a problem. Without knowing more about the reasons for this persons statement, I can't really say much more. Except that I've used 1/2" (Type X - fire code) drywall in a number of projects and it's Always worked just fine!
And as for 'finishing', you could probably do that yourself too - and save some money. But that's for another posting.

ballengerb1

It is already up there so just leave it. If it sags then you can replace it with heavier wall, 1/2 should be OK.

Stratmando

Sometimes "Nailers" are Nailed to Joist, Perpendicular to joist. Then Drywall.
Not sure, If it does sag, and you want to fix. May be easier to secure nailers over existing
drywall, and another layer of drywall.
Possibly install Nailers as decorative over drywall and paint. Forget second layer.

glavine

Alot Of New Homes We Run Into Today Are Built Using Trusses And Are Also Sheetrocked With 1/2, You Really Should Have Nothing To Worry About,
5/8 Is Used For Commercial Work, Also To Use As A Firewall, Or Help With Soundproofing,
Your Fine No Worrys