Insulation questions for osb sheeted pole barn

[LJB55]

I am getting ready to start my 32' by 40' by 12' pole barn. It will be used mostly for custom car storage and repair. I live in NE Ohio and would like to use the building thru the winter. I decided not to heat the slab as I will primarily heat the building to around 45 F and only turn it up when I plan to do some work. I do have natural gas so was thinking of a ceiling mount heater. I live in a development with an HOA and had to make the garage similar to the house so it will have vinyl siding and asphalt shingles and be built with osb sheeting instead of metal. I'm not sure what type of insulation would be the most cost effective to use. The quote from my contractor doesn't include any interior work other than the concrete floor. Most of the stuff I have read assume you are insulating a metal building so they talk a lot about condensation. I would appreciate any ideas before I start to spend a lot of money.

Thanks,
Len in Northeast Ohio

 

[HoosierMark]

Make sure they wrap the building with house wrap, that is the first step. Most people here like spray foam next. I used 1 and 1/2 inch foam board between my purloins then actually put more foam board running the other way. Then I used 5 inch by 5 foot wide rolls of insulation between the posts and finished it off with new purloins. I had access to a lot of cheap foam board so I took advantage of it. Have you considered perhaps just framing the building with standard 2x4 walls? The cost might not be that much different since you will need plywood for the exterior to attach the siding to. Then you could just use standard insulation.

 

[bad_idea]

The cost might not be that much different since you will need plywood for the exterior to attach the siding to. Then you could just use standard insulation.

I just built a 30x40x12 myself. My wife wanted it to match the house - vinyl siding and asphalt shingles. I looked into the cost of a pole barn vinyl sided and shingled - it was about the same as a stick built. I went stick built. Will be easier to finish the interior too.

 

[Handyfarmer]

If your wanting to insulating and using OSB and wanting the inside finished,

build a conventional stud building instead of a pole barn, you build a pole barn and you will end up building a second building inside the pole barn to finish the inside out, most likely,

time wise should not take any longer and cost, most likely will not be more,
by the time one uses the purlins and the posts, the amount of lumber used will be nearly the same, and you still don't have the inside furred out

since your having a slab floor poured, you have "foundation" with a monolithic slab, (thickened edge, the pole barn is Ok if there is no foundation or design for one,
I have farmed for All my life, and have over 10 miles of fence, and have seen life time guarantees on the posts we use in the fence, believe me i have replaced many, many, life time treated posts, even the local electrical provider, replaces there poles from time to time,

 

[ddawg16]

That ^^^^^^

After all the stories.....about the only advantage a pole barn has is cost 'if' it's not going to be insulated.

Otherwise, they don't look as nice and take a lot more $$ and effort to finish out the inside.

 

[stm317]

Agreed with the suggestions to just do a stick built, or at least investigate the cost difference vs a pole barn that's been finished. A large part of the cost savings of a pole barn comes from the metal exterior and time/labor savings. With plywood sheeting on the exterior/vinyl siding, and an asphalt roof, you're basically building a house with poles for studs every 8 ft instead of 2X4s or 2X6s every 16 inches.

 

[LJB55]

Thanks for all the replies. I have gone back and forth with stick vs pole myself. I have not verified it yet but there might be a tax advantage to a pole building but will have to find out for sure. I am going to meet with the contractor to discuss it further before we start. The foundation is the biggest cost difference I guess but I will have to hear what he has to say.

Thanks,
Len

 

[Randy in Maine]

I would use SIPs with house wrap on the outside and then the siding. I used this myself on my 40'x28'x12' shop. Very well insulated and cost effective. Mine is sided in log siding so it sort of matches my log house.

http://www.murus.com/