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Non-IC Can in Insulated Ceiling #80173 03/12/02 04:14 PM
Joined: Oct 2001
Posts: 597
E
ElectricAL Offline OP
Member
Hey Folks!

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
Quote
410.66 B Thermal insulation shall not be installed above a recessed luminaire (fixture) or within 75 mm (3 in.) of the recessed luminaire’s (fixture’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?


Al Hildenbrand
2017 / 2014 NEC & Related Books and Study Guides
Re: Non-IC Can in Insulated Ceiling #80174 03/14/02 08:40 PM
Joined: Nov 2001
Posts: 280
M
motor-T Offline
Member
ElectricAl:
I had the same question, and was told there are such animals, but I cant find them anywhere, supposedly made out of fibreglass and looks like a dome and is set right over the top of the Non-IC fix,Ooops ah Luminaire,but so far I have not been able to locate one.
hope you have better luck.
-Mark-

Re: Non-IC Can in Insulated Ceiling #80175 03/15/02 11:37 AM
Joined: Feb 2002
Posts: 22
W
wageoghe Offline
Member
There is an article in a recent ( last month or two ) issue of "Family Handyman" that shows a box being built around a recessed light. I don't recall if they specified if it was aimed at IC or non-IC lights. They used some sort of pink styrofoam looking stuff, taped and caulked to be airtight ( or nearly so ). This box was placed over ( or built in place over ) the recessed light.

I don't know if this addresses your question, but it might.

I'm a homeowner Jim, not an Electrician!

Re: Non-IC Can in Insulated Ceiling #80176 03/15/02 06:55 PM
Joined: Dec 2000
Posts: 4,283
electure Offline
Member
A little bit of drywall works great. Remember that if a piece of chicken wire keeps it 3" away, it's Code approved! [Linked Image]

Re: Non-IC Can in Insulated Ceiling #80177 03/15/02 08:40 PM
Joined: Oct 2000
Posts: 5,389
S
sparky Offline
Member
as well as chickenproof... [Linked Image]

Re: Non-IC Can in Insulated Ceiling #80178 03/19/02 02:53 PM
Joined: Oct 2001
Posts: 597
E
ElectricAL Offline OP
Member
Thanks for the feedback.

In the past I've put up plywood or drywall enclosures to keep the insulation clear of the recessed housing. Or I've gotten the GC to get someone to do it to my specs.

Al


Al Hildenbrand

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