24 Inch Ceiling Joists

Michaeljp86

When you have 24 inch spacing on the ceiling joists do you need to run a bead of adhesive down it? I was told your supposed to but the only thing I can find in my books is screw spacing. They didnt get me my IBC book yet.

Brockster

I've never heard of having to glue the rock onto a joist. I have seen a lot of channel installed to close up the joist space. you install it the opposite direction of the joist.

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neolitic

It needs to be 5/8" board.
You mean 1X strapping?

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(Sorry....it seems there really are dumb questions)

kgphoto

That or hat channel

Capt-Sheetrock

unless codes have changed recently, 1/2 on 24" meets code. 1/2 sag resistant will give you a better ceiling (stiffer) and of course 5/8 will give you an even stiffer one, but regular 1/2 meets code (even tho most people don't think it does). You can check with your local building infector if you feel the need.

thom

We do 1/2" 24" oc without adhesive as standard.

Did it in my own house 24 years ago and it's just fine. It doesn't sag between joists.

oldrivers

on ceiling trusses that are 24 on center there is a vapor barrier so glue wouldnt work there so i cant see why you'd need it on any other ceiling without a vapor barrier.