The majority of the insulation is 2” foam insulation board from Home Depot. By itself it works pretty good, I would like to cover the insulation with thin dry wall or even that fake wood paneling you would see in a house from the 70’s.
the insulation board alone is enough to keep the heat and cold out. But a little extra covering on the walls and celing wouldn’t hurt.
I’m using a blue ridge mini split with three air handlers. I believe the mini split is a 3 ton unit
1- 9,000 btu unit for the “clean” room
2- 12,000 btu units for the shop
The mini split works awesome, for both heating and cooling. I would absolutely go that route again.
Shop size is 1600sq ft +-