I have 2 36" Showcase cages stacked and noticed the top cages UTH wasn't on and the temp on the stat was reading 94'. IR temp gun showed 93' on the floor under substrate. The bottom cages CHE was heating up the top cages floor. I placed a 3/4" foam board covered in aluminum tape and it wasn't enough. I now have a 1" foam board and a 1/4" ceramic tile in there and it seems to be working.
Hope this may help someone in the future.
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