Sheet metal on OSB for ceiling

[RISTAU65]

Looking for some help, I have a garage with the walls and ceiling finished with 7/16 OSB. I want to add sheet metal roofing panels to the ceiling to finish it off instead of painting. However, I’m concerned if that would put too much weight on that trusses. Anyone have any thoughts or experience with something similar. Thanks in advance!

 

[Jim greengo]

Sheetmetal doesn't weigh much.

 

[readhead]

The sheet metal doesn’t weigh much. I would be more concerned about the OSB. Do you know what the dead load rating is for the bottom cord of the truss?

 

[billconner]

Where do you live, or specifically what kind of snow load?

 

[loganb]

Metal liner panel is far less weight per sq ft than osb...if worried about weight the osb needs to come down and liner panel directly to studs back up

 

[RISTAU65]

The sheet metal doesn’t weigh much. I would be more concerned about the OSB. Do you know what the dead load rating is for the bottom cord of the truss?

I do not. Not sure how I would calculate that.

 

[RISTAU65]

Where do you live, or specifically what kind of snow load?

Minnesota, so there’s plenty of snow load during the winter months.

 

[RISTAU65]

Metal liner panel is far less weight per sq ft than osb...if worried about weight the osb needs to come down and liner panel directly to studs back up

That would be ideal but I have blown-in insulation so taking down the OSB would be an easy task with having to deal with the insulation.

 

[loganb]

That would be ideal but I have blown-in insulation so taking down the OSB would be an easy task with having to deal with the insulation.

I'd just put the liner panel up as I find it highly unlikely that you're close enough to failure that the marginal weight add of liner panel will do anything

This is about half the weight per sq ft compared to interior liner panel, never used it personally but if the goal is to brighten up the space and avoid painting it should do the trick

12' 2" White Pro-Tuf Interior PVC Liner Panel

This is a white PVC interior liner panel. Pro-Tuf has the same configuration as our Pro-Rib® panels and has 36" of coverage. These panels are non-flammable, chemical and impact resistant, rust proof, and have a high gloss white finish. Panel is light weight and easy to install.

www.menards.com

 

[RISTAU65]

I'd just put the liner panel up as I find it highly unlikely that you're close enough to failure that the marginal weight add of liner panel will do anything

This is about half the weight per sq ft compared to interior liner panel, never used it personally but if the goal is to brighten up the space and avoid painting it should do the trick

12' 2" White Pro-Tuf Interior PVC Liner Panel

This is a white PVC interior liner panel. Pro-Tuf has the same configuration as our Pro-Rib® panels and has 36" of coverage. These panels are non-flammable, chemical and impact resistant, rust proof, and have a high gloss white finish. Panel is light weight and easy to install.

www.menards.com

Thanks, that’s exactly what I’m looking for. I’ll give it a try.

 

[billconner]

Minnesota, so there’s plenty of snow load during the winter months.

The snow loads the trussesare designed for far exceed the weight of the liner panels - just insignificant. I find less than a pound per square foot (.65 psf for 29 guage steel). Compared to 40 or 50 or more psf snow load.

 

[readhead]

Snow load is determined by the complete assembly. The top cords do the most work. The bottom cord is in tension and is designed to carry a certain load on its own to accomplish ceiling finishes. The bottom cord could be a piece of rope but it would be hard to nail drywall to. The bottom cord has a design load and the assembly the OP desires to install may be within that design but maybe not. It is not a typical installation.

 

[billconner]

The web members put some concentrated bending load on the lower chord. I just don't believe they are engineered that tightly. >1 pound psf is insignificant.

 

[rockettauto]

You should have at absolute minimum 10psf for ceiling load if it was designed to have a ceiling at all. With 7/16 osb you're at a little over 1psf, add insulation maybe you're at 2. Add metal you're at maybe 3.

 

[readhead]

I don’t disagree with any of that. The problem is that right now the load capabilities of that truss are unknown. The OP clearly states that he is concerned about the potential placement of to much weight on the bottom of the trusses.

He could assume that there is plenty of capacity and that may or may not work out. He has a very legitimate concern with potential snow load. He could track down the supplier of the trusses and obtain the design specs. He could hire an engineer to calculate the capacity of the trusses. I believe his concern is real and those would be my suggested directions to a solution.

 

[bb29510]

im not a big fan of sheet metal interior because its not cheap and the echo

 

[Zeke]

Have you thought about adding some batts to the ceiling to make it more interesting and painting it? IDK how big the building is, but SM or vinyl is not going to be cheap and that's a bit of labor as well. If you just really don't like the look of OSB there is textured paint. Leave any batts smooth for a nice look. I'd keep it all one color but you don't have to. A very subtle shift might be cool.

One thing about batts is you can let your imagination run wild.