Residential stair light can in cold air return

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blake727

Member
A stair lighting can was inadvertantly placed in a cold air return. Is there any thing that can be done without tearing the can out?
 

ryan_618

Senior Member
Re: Residential stair light can in cold air return

The reason I ask is that if the International Residential Code is adopted, it will govern the installation. I have looked for anything addressing materials permitted or not permitted in a plenum in the IRC, and have found that gas piping and plumbing clean-outs seem to be the only thing prohibited. Have your inspector take a look at chapter 16 of the IRC. Be advised that this is not gospel, it is just me looking hard and not finding it. Hope this helps you out. What state are you in?

[ June 17, 2003, 06:49 PM: Message edited by: ryan_618 ]
 

blake727

Member
Re: Residential stair light can in cold air return

Thanks for your help. It would be ripped out and relocated however the walls are finished and the can is the first of three, needless to say that it would be a production. The state is Minnesota.
Regards, Blake
 

ryan_618

Senior Member
Re: Residential stair light can in cold air return

Good news for you then! MN has adopted the IRC, statewide. Typically, the concerns in a plenum are flame spread and smoke developed index ratings, but, the IRC is silent on it. Transfer burden of proof to your inspector and rest easy.

[ June 17, 2003, 06:57 PM: Message edited by: ryan_618 ]
 

jxofaltrds

Inspector Mike®
Location
Mike P. Columbus Ohio
Occupation
ESI, PI, RBO
Re: Residential stair light can in cold air return

Remove the drywall and build a 2x? box around the can with one side being the floor joist. This will cut the air flow however it will not be in the cold air duct. The re-drywall.

Make sense?

Mike P.
 
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