Posted by:
jeff favelle
at Fri Feb 27 01:33:06 2004 [ Email Message ] [ Show All Posts by jeff favelle ]
Wood is "kind of" a good isnsulator, bit not really. It absorbs heat. You need something that will REPEL the heat. And for this, you have to either use styrofoam slabs (cheapest method) or aluminum-coated insulation. Any lumber yard has it. Its not terribly expensive. But this stuff doesn't let the heat through, and more importantly, doesn't heat up itself. Therefore, the heat stays trapped at the back of the rack like a hot-damn!! Its awesome! And my racks are only made out of 1/2-inch plywood! So there's NO R-value there at all. Its ALL about the insulation slabs!
Best of luck. Keep us updated. 
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