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Metal building insulation ? #7326666
08/10/21 03:55 PM
08/10/21 03:55 PM
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Nevada
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nvwrangler Offline OP
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Ok guys, I'm having a new metal building put up its 28x30 with 12 foot walls and a 4/12 pitch roof.

How would you insulate it if it was yours? Spray foam or foam boards? or?
What does the square footage come out to be for the walls and celling for insulation purposes?


Last edited by nvwrangler; 08/10/21 03:56 PM.
Re: Metal building insulation ? [Re: nvwrangler] #7326671
08/10/21 04:02 PM
08/10/21 04:02 PM
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The great cage state Colorado
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Monster Toms Offline
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Just under 2500SF. I'm partial to 1 1/2" spray foam to fill the gaps on the out side walls and ceiling. then run plumbing and electrical. Finish with batts.






Re: Metal building insulation ? [Re: Monster Toms] #7326699
08/10/21 04:40 PM
08/10/21 04:40 PM
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West Central MN
20scout Offline
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Originally Posted by Monster Toms
Just under 2500SF. I'm partial to 1 1/2" spray foam to fill the gaps on the out side walls and ceiling. then run plumbing and electrical. Finish with batts.

This....


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Re: Metal building insulation ? [Re: nvwrangler] #7326701
08/10/21 04:45 PM
08/10/21 04:45 PM
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nvwrangler Offline OP
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Just use foam to fill gaps like the can of foam then bats? I think the studs are 2 inch square tubing.

Re: Metal building insulation ? [Re: nvwrangler] #7326715
08/10/21 05:04 PM
08/10/21 05:04 PM
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DWC Offline
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Id love something similar. How much have the price of these buildings gone up in the past year do you know?

Re: Metal building insulation ? [Re: nvwrangler] #7326722
08/10/21 05:14 PM
08/10/21 05:14 PM
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nvwrangler Offline OP
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This one was about 14 grand not counting concrete

Re: Metal building insulation ? [Re: nvwrangler] #7326743
08/10/21 05:38 PM
08/10/21 05:38 PM
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larrywaugh Offline
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I got a quote to have mine spray foamed. It was 6 thousand for 1 inch thick foam. This is for a 40 x 60 with 11 foot side walls. The building cost 32 thousand including concrete.


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Re: Metal building insulation ? [Re: nvwrangler] #7326833
08/10/21 06:56 PM
08/10/21 06:56 PM
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The great cage state Colorado
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Monster Toms Offline
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Originally Posted by nvwrangler
Just use foam to fill gaps like the can of foam then bats? I think the studs are 2 inch square tubing.

No, spray the whole interior, so the entire wall and ceiling space has an even covering.

I guess it depends on whether or not you are going to finish the walls with shething.






Re: Metal building insulation ? [Re: nvwrangler] #7326843
08/10/21 07:05 PM
08/10/21 07:05 PM
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North central Iowa
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Bob_Iowa Offline
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Just remember with spray on foam if the tin rust out you will have to reinsulate the building with the tin I have a building this way the tin rusted from the inside out because moisture was between the insulation and the tin.

Re: Metal building insulation ? [Re: nvwrangler] #7327155
08/11/21 12:18 AM
08/11/21 12:18 AM
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nvwrangler Offline OP
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Trying to figure out the best way to do the roof.

Ok what about coating the floor?

Re: Metal building insulation ? [Re: nvwrangler] #7327156
08/11/21 12:20 AM
08/11/21 12:20 AM
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nvwrangler Offline OP
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Bob how long did it take to rust out?

Granted our humidity is way lower then most places

Re: Metal building insulation ? [Re: nvwrangler] #7327220
08/11/21 06:26 AM
08/11/21 06:26 AM
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Michigan
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Trapper Dahlgren Offline
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never heard of one rusting from the inside out , must have had moisture trap in between when spray , foam will seal it ? my metal is guarantee for 40 years

Re: Metal building insulation ? [Re: nvwrangler] #7327224
08/11/21 06:28 AM
08/11/21 06:28 AM
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Michigan
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Trapper Dahlgren Offline
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my ceiling is drywall and then 18 inches of blown insulation

Re: Metal building insulation ? [Re: nvwrangler] #7327255
08/11/21 07:28 AM
08/11/21 07:28 AM
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OhioBoy Offline
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From what I understand spray foam is hard for a guy to afford vs much cheaper for something a little less efficient. I guess it would depend on what I planned on using the building for... i.e. how much time I was going to spend out there.

Mine is a pole barn and already built. If I was doing it, it would be hard to beat just nailing sheets of insulation the exposed slats on the inside and ceiling.

If I was building it and planning to insulate it I always liked the pole barn style with stick built walls propped up between the posts. They'd be 2x6 to match the "poles", I'd use regular fiberglass, and cover it with OSB. Current lumber prices though may make that method less desirable and actually may justify spray foaming it though.


Re: Metal building insulation ? [Re: nvwrangler] #7327267
08/11/21 07:50 AM
08/11/21 07:50 AM
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Diggerman Offline
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My neighbor just spray foamed 3" on a 50 x 104 with 18 ft side walls no ceiling for 12 grand, had another estimate for 18 grand. some put up plastic to keep foam from adhering to steel.

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