Air sealing retrofit LED — airtight, IC-rated non-can lighting
Hi, we had some recessed lights in one of our bathrooms. They were non IC rated can style lights, that had large holes into the unconditioned attic space. I was having trouble getting dimmable LEDS in them, so I started replacing them with these retrofit led lights. See the attached photo. These are “airtight” and IC rated. There is no can. I know that they aren’t really airtight. Attached is a photo from within the attic of the attic floor where a recessed light lives. I want to take a ~16″ wide rectangular piece of rigid foam (I have some polyiso lying around), cut a small hole for the electrical connector to the box (white cord shown in photo), and secure/air seal the rigid foam to the attic floor. Ideally this would make that penetration airtight.
Is there anything wrong with this? Will it work? Is there any reason to believe the LED light will stop working? Is this a fire risk? moisture risk?
I’ve had trouble uploading photos here, so instead you may find the photos here:
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