Vertical Steel Siding on a Stick built frame . . .

[Cemoto]

Guys I could use some advice here please.

The foundation is in and the floor and pads are poured.

I'm at the point of choosing materials for siding.

Although the garage sits well back on my property the facade will be seen from the road. I'd like the facade to match the house which has stained red cedar. That stuff is hugely expensive, but it won't be bad to do the front due to the large doors.

I think I'd like to do vertical steel on the other three exterior walls as they face the woods and the durability of steel appeals to me.

This build will have a conventional asphalt shingle roof and frame with soffit and ridge venting as well as an electric roof fan.

There will be 10' walls w/ a full-length ledger fastened above on the gable ends for a future lean-to.

So this leaves me w/ 10' walls. I looked into T-111 and unless I wanted to buy a truckload I could not find 4'x10' sheets.

The steel seems to fit my purpose.

The plywood/OSB on a stick build adds structural integrity. I'm not sure steel would do the same by itself, so strapping or sheathing underneath seems to be in order.

Long winded post I know but I wanted to provide all the details.

My questions are as follows:

If I was to attach vertical steel directly to the studs would it provide enough structural integrity?

Would I have a moisture problem if the steel is attached directly to plywood? It is in a somewhat damp area but not rainforest.

If the steel is applied directly to the studs can I use spray foam insulation or will the steel rust underneath the foam?

Any thoughts or suggestion will be greatly appreciated!

Thank you!

 

[ADSR]

Hmmm.... Tough question. I've only done it with the strapping. And that is by code. Resaw/shiplap is the minimum. I wouldn't put a lot of faith in the steel siding holding the building together. Also, the condensation will be a problem.

I would strap it, tar paper/tyvek it, side it.

 

[rkevins]

If you want to add stability use 2x4 lath on 16" centers and screw the metal to it.

 

[p_mori7]

Sheath it with OSB, tyvek over the OSB, Horizontal 1x3 strapping over the tyvek, steel screwed into the strapping...insulation can still be in the traditional fashion (batting in the stud bays) and no condensation issue.

 

[cyamaha2007]

^^^ this is exactly how we do it.

 

[ishiboo]

OSB's strength is pretty hard to beat. You can get by with just strapping, however the 30x40 I had used strapping with all corners of the building built up with OSB... kind of the best of both worlds. A bit more $ than strapping only, but less $ than all OSB.

 

[Cemoto]

Thanks guys.

 

[ADSR]

OSB's strength is pretty hard to beat. You can get by with just strapping, however the 30x40 I had used strapping with all corners of the building built up with OSB... kind of the best of both worlds. A bit more $ than strapping only, but less $ than all OSB.

I don't know what price OSB is in your neck of the woods, but 1/2 plywood is only 2.50$ more a sheet here in canada.

OSB really is ****. We always use it to sheet roofs/walls of the low bid houses we build. Custom builds get plywood.

 

[kert]

Check out my build. I went with OSB under the siding because I hadn't made up my mind what I wanted to use for siding. At the time I think 7/16" OSB was about the same price as several strapping options I looked at.

I don't think you can reasonably hang vertical steel over studs. You will have problems because it needs to be screwed where the pieces overlap, which won't be on a stud unless your studs are 18" or 36" on center.