Bennie,

I am under the impression that the solution is not as simple as a shield. If it was I think We would see them on the market right away. I think the concern involves the heat travelling up the wire (would convection be the right word) and that it may even affect wiring before or past the Jbox.

I am not familiar with the workings of UL. Is there a way We can get more info on this? I mean on the test conditions and results?
I am suspecting that this 'blanket' warning is really for worst-case situations such as areas with an attic above and covered with insulation. It would be nice to know that a location between floors with no insulation and 75C wiring is OK. Or maybe they think it's too complicated for us to remember?
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Bill

Bill