Insulating a metal building

[Gadjet]

I recently had a 30x40x12 Morton pole building built behind my house for a spare garage/shop. I'm thinking down the road that I would like to insulate and finish the inside. Spray foam sounds like the best way to go but it's pretty expensive. Anyone have any good alternatives that would be less expensive?

 

[Cedarsavage]

I recently had a 30x40x12 Morton pole building built behind my house for a spare garage/shop. I'm thinking down the road that I would like to insulate and finish the inside. Spray foam sounds like the best way to go but it's pretty expensive. Anyone have any good alternatives that would be less expensive?

I have a similar size I’m getting spray foamed next week. I spent a lot of time looking into it and it was the only one that made sense for mine because my studs run horizontal and 19” so regular batting wouldn’t work. Only other realistic option was foam board and the spray isn’t all that much more at least in my area

 

[Beendare]

I have a similar size I’m getting spray foamed next week. I spent a lot of time looking into it and it was the only one that made sense for mine because my studs run horizontal and 19” so regular batting wouldn’t work. Only other realistic option was foam board and the spray isn’t all that much more at least in my area

I think thats accurate. Even the encapsulated fiberglass is not cheap. You wouldn't want to use fiberglass thats not encapsulated unless you rock or sheet the interior which drives up the cost.

You could do the foam board yourself saving labor cost but it won't be as effective as spray foam due to it not sealing well. If you do end up doing foam board, use the cans of foam to seal the edges.

I would avoid the spray foam kits as if you get a bad mix, you can get off gassing and other problems that will have you stripping the foam out- not good.

Do it right the first time...you won't regret it.