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Interior Construction Advice Needed

Aoelge01

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Jun 12, 2013
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6
New forum member (at least in terms of posting) here, but I appreciate the many posts i have read as I have tried to figure out my new barn.

I am in the process of building out a new 30x50x12 pole barn (pics to come when i figure out how to do this). The basic building is nearing completion, with a couple minor to-do items (flashing on exterior, hang shop ceiling fan). All this work has been done by a contractor we hired. The pole barn is approx. 100 feet behind our home in Missouri.

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On the inside, I (meaning me, not a contractor) am semi-finishing a "game room" area that will be approx 24x14. This room will have some moderately heavy items hanging on the wall (taxidermy) - 50-100 pounds. My plan is to have most of the wall in old barn wood with a galvanized metal wainscoting and rusty tin ceiling. However, i want to be able to put a nail/hanger anywhere on the wall without finding a stud under the barn wood. Old barn wood may/may not support that and I don't want to find out the hard way.

1013WG


I have framed everywhere in the room in between the poles to create the basic interior wall structure. My current plan is to hang 7/16 OSB over these studs and then nail gun the barn wood over the top of the OSB, with a layer of black felt in between so you can't see the OSB through any cracks in the barn wood. Also, I plan to use cellulose insulation blown into the dead space i created with the 2x4 framing on the inside of the poles.

Two questions....is the OSB a good choice for this "base layer?" And would you run this base layer all the way top-to-bottom? I don't know that I need the OSB under the metal wainscoting, but i need something down there to hold the insulation in as I blow in the insulation from the top.

Appreciate any advice you can offer. I'm a sales and marketing guy and not a construction craftsman. I'm learning this as I go along.
 
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Firebrick43

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So, as far as insulation, do you have something on the out side(as in exterior side) such as OSB or netting? If you have just metal I would suggest not using cellulose. It will plug the vent ribs of the metal blocking airflow. With out airflow you have converted the outside metal to a vapor barrier. Now placing a vapor retarder on the inside and you will have moisture issues inside the wall.

Second while I don't disagree with putting up OSB in your situation I wouldn't put stock in 7/16 supporting 100 lbs without possibility of issues. You still need to hang it on a stud or step up in thickness. You just don't have the screw engagement with 7/16.
 

stm317

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Plywood seems less likely to have a chunk rip out from an overloaded fastener. Half inch would be pretty solid
 
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Aoelge01

Member
Joined
Jun 12, 2013
Messages
6
Sorry, good question, Firebrick. I should have clarified. I have that sheet insulation in between the exterior metal and the interior framing that everyone is using on pole barns now. If i could figure out how to post pics, you could see that on the pic of the interior framing. You think i'm ok with cellulose since i have the sheet insulation there?

Also understand the concern with 7/16" OSB. Sounds like 1/2" is what i should use.

Again, thanks for the thoughts!
 
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James-W

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Feb 3, 2013
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Southeastern Wisconsin
If you want OSB I think if it were me I would go with 5/8 inch rather than 1/2 inch. The 5/8 inch OSB may be a bit of overkill, but I think it is best to err on the side of caution when hanging heavy objects on the wall. I am guessing here but I think the cost difference between the 5/8 inch and the 1/2 inch would be roughly $4 per sheet, which in my opinion isn't all that terrible.
 

Stuart in MN

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Minneapolis
Are the barn boards to be installed horizontally or vertically? If they're horizontal I assume they'll be nailed into the studs in which case the walls should be more than strong without an underlayment enough to hold your taxidermy. If they're vertical, OSB or plywood is a good idea. 1/2 inch should be okay.
 

GrayFlattop

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Personally, I'd go with 5/8" plywood over OSB. Same labor cost / time, better screw-holding ability than OSB.

Many years ago, I "finished" the walls in our unfinished basement (stone foundation) by running studs along the face, then applying 1/2" CDX (which I hit with a quick coat of drywall mud and two coats of white paint. It's fine as an anchor for small shelves or electrical panels, etc.

Anything holding any kind of weight would be out of the equation, IMO.

But it's one of those things if I had the chance to do over, I would have used 5/8" and B-C plywood. Since you are thinking of covering it, CDX is fine.
 
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