Farwell
Veteran Member
Living in cold Winter country I would suggest 2 inch blue foam board under the slab as well if you plan on spending much time in the Winter working in your pole barn.
I have one inch double foil covered foam under my metal siding and 14 inches of blow in insulation in the ceiling. My pole barn is heated with a Hot Dawg natural gas heater. I keep the barn at around 47 degrees all during the cold season, the heater comes on around once an hour and costs less than $35 a month to heat. It still hurts my hands when using wrenches due to the 47 degrees but it is much better than the inside temp matching the outside temp.
I doubt that you will save any money by pouring the concrete yourself if you consider your time and labor worth anything.
Good luck.
Farwell
I have one inch double foil covered foam under my metal siding and 14 inches of blow in insulation in the ceiling. My pole barn is heated with a Hot Dawg natural gas heater. I keep the barn at around 47 degrees all during the cold season, the heater comes on around once an hour and costs less than $35 a month to heat. It still hurts my hands when using wrenches due to the 47 degrees but it is much better than the inside temp matching the outside temp.
I doubt that you will save any money by pouring the concrete yourself if you consider your time and labor worth anything.
Good luck.
Farwell