Originally Posted by
soap
When I built my shop I did all spray foam in the walls and batts with blown in the ceiling (R-48) equivalent. All 3 garage doors are 2" thick insulated as well. It was the best money I ever spent. I leave the thermostat on 50* all winter and turn it up when I'm out there working. I have a radiant tube for heat, costs me $25/mo.
The biggest advantage of spray foam is that it creates a complete barrier......you get zero air leaks. Batting or blown in will always have air leaks around outlets, against studs, corners etc.
--Joe
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