Ceiling Question

[32rules]

I bought 100 sheets of 7/16 OSB on sale to use on the ceiling. Well, I ended up using 60 sheets of it to cover the walls. So I have 40 sheets left and need about 75 sheets to cover the ceiling.
My trusses have 2X6 bottom stringers and are 4' OC.
Question: Is the 7/16 to heavy? Do you need 2X4 stringers? and how should you install the 2X4 stringers?
Since I need to buy more, should I switch gears and go to steel.

Here you can see the construction of the trusses.
Buidling is 60X40X14

 

[Red05GT]

Weight of the osb on the bottom chord of the trusses would not be a problem, but you
would have to frame in additional support to keep the osb from sagging. You could use
grand rib steel and stitch screw the seams and span the 4' truss span without
additional framing other than the ledger board on the two end walls. I personally like
the steel for the ceiling for the light reflection, clean look, finished surface and contrast
to wall texture. If you decide to go with osb on the ceiling, you would probably want to
paint it for light reflection, so you would need to factor in several gallons of paint or
sealer to compare price apples to apples.

 

[irishtom]

No insulation?

Ribbed or corrugated metal would already have a light finish, no painting, and should easily span between trusses. A different material and texture would make your garage more interesting inside too. Save the OSB for another project.

 

[dcovey]

Wife and I went to our favorite BBQ joint in Lampassas yesterday. They had used a galvanized corrugated metal on the walls. It also looked like they sprayed a clear coat on it..
I thought that was a good idea because I remember the metal getting darker with age. But that could be and probably was caused because it was exposed to the elements.

I have no idea what it would do when used inside..

But I'm going to find out as that is what I'm going to use on mine. It is 26"W x 12' L and will cover 24"x12'. I am going to either use a metal screw to join them or a rivet. Then attach them to my trusses. Lowes has them for 13.** each and then I can get 10% military discount.

Just a FYI, and someone correct me if I'm wrong.

I was told that a truss made from 2x6 on the cord would only support 26 lb psf. I was concerned about it because I figured the additional framing and the sheetrock would be close to the limit.

Dave