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IC Rated? #93696
06/07/05 09:21 PM
06/07/05 09:21 PM
S
shortcircuit  Offline OP
Member
Joined: Jun 2004
Posts: 610
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?

shortcircuit

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Re: IC Rated? #93697
06/07/05 09:33 PM
06/07/05 09:33 PM
renosteinke  Offline
Cat Servant
Member
Joined: Jan 2005
Posts: 5,316
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.

Re: IC Rated? #93698
06/07/05 10:56 PM
06/07/05 10:56 PM
H
HLCbuild  Offline
Member
Joined: Dec 2004
Posts: 209
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.

Re: IC Rated? #93699
06/07/05 11:27 PM
06/07/05 11:27 PM
J
Jps1006  Offline
Member
Joined: Jan 2004
Posts: 615
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.

Re: IC Rated? #93700
06/08/05 12:33 AM
06/08/05 12:33 AM
A
Active 1  Offline
Member
Joined: Feb 2003
Posts: 687
Grayslake IL, USA
JPS-

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

Tom

Re: IC Rated? #93701
06/08/05 02:01 AM
06/08/05 02:01 AM
S
SolarPowered  Offline
Member
Joined: Jul 2004
Posts: 625
Palo Alto, CA, USA
Of course, there's probably just a teensy, weensy bit of air leakage out of the building through the fan [Linked Image]*, so insulating around it probably isn't all that important.

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


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