Been lurking for awhile. . .
Every once and awhile I get situations where the client has to have a light that can only be delivered from a trim that can only be installed in a thermally protected but non-IC rated roughin recessed housing. And, as Murphy will remind me again and again, at least one can has to go in an insulated ceiling.
Thinking specifically of
410.66 B Thermal insulation shall not be installed above a recessed luminaire (fixture) or within 75 mm (3 in.) of the recessed luminaireâ€™s (fixtureâ€™s) enclosure, wiring compartment, or ballast unless it is identified for contact with insulation, Type IC.
What are some of the ways that insulation dams are being built (around a nonIC recessed luminaire) and accepted by the AHJ around the country?
Also: In the areas that have Air Tight requirements, are there solutions involving insulation dams or the like that allow the nonIC thermal protected can to be installed in an insulated ceiling?