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#93696 - 06/07/05 06:21 PM IC Rated?
shortcircuit Offline

Registered: 06/27/04
Posts: 608
Loc: massachusetts
The insulators on the job I'm doing won't place insulation around the exhaust fans or exhaust fan/light combo's I've installed in the bathroom ceilings.

They say they don't have the "IC" sticker on the housing, so they are told not to insulate within 3 inches.

Are exhaust fans required to be "IC" rated in insulated cieling spaces?


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#93697 - 06/07/05 06:33 PM Re: IC Rated?
renosteinke Offline
Cat Servant

Registered: 01/22/05
Posts: 5305
Loc: Blue Collar Country
The "IC" requirement is for recessed lights. However, since bath fans typically also contain lights, the position of the insulators seems prudent.

#93698 - 06/07/05 07:56 PM Re: IC Rated?
HLCbuild Offline

Registered: 12/05/04
Posts: 206
Loc: Herndon,Va USA
I had this same question about 20 years ago and I called tech support at Nutone. They said that a fan/light combination unit was not a recessed light and did not require the rating or label. They did tell me that their unit was tested with R-19 insulation above it.

#93699 - 06/07/05 08:27 PM Re: IC Rated?
Jps1006 Offline

Registered: 01/22/04
Posts: 609
Loc: Northern IL
the Broan fan/light I use has an inline t-stat that pick up power off the light switchleg so if the 100watt bulb is left on without the fan, it will kick on by itself to vent the excess heat. If the light is on with the fan obviously heat is not an issue. I have never heard of an exhaust fan that you can't put insulation up to.

#93700 - 06/07/05 09:33 PM Re: IC Rated?
Active 1 Offline

Registered: 02/22/03
Posts: 684
Loc: Grayslake IL, USA

Now I know what that extra thing on the fan plug is.


#93701 - 06/07/05 11:01 PM Re: IC Rated?
SolarPowered Offline

Registered: 07/05/04
Posts: 615
Loc: Palo Alto, CA, USA
Of course, there's probably just a teensy, weensy bit of air leakage out of the building through the fan *, so insulating around it probably isn't all that important.

(* Well, OK, if the fan works properly, there's a huge amount of leakage... )


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