Homemade walk-in cooler
I’m about to build a 10’x14’x8′ cooler for my farm, using a 24,000btu window unit and a CoolBot to reach a temperature of 40-45F. I’m using layers of 2″ eps rigid foam with foil backer (it was the best deal I could find on Craigslist) to reach a minimum of r-25 throughout, and 15 mil plastic as a vapor barrier.
First question: should the insulation be on the interior of the framed walls and vapor barrier over the insulation, or vapor barrier then insulation.
Second question: is there a way to build a foundation below grade–to avoid any steps– without pouring concrete?
Third: am I going about this wrong?
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