My home was built in 2001, split level with 14ft cathedral ceiling for kitchen/dining/living room.
In the kitchen there are 4 adjustable eyeball can lights, the enclosures are IC rated but the trims are not "air tight"... is it worth putting CFLs in these enclosures, caulking the bases to the drywall and foil taping the holes in the enclosure?
I have 18" of cellulose atop them, but am wondering if this is leaking any appreciable amount of air? Do they make a swiveling air tight trim for a 6" light?
No reason to use air tight unless it's in a wet location. Leave the can alone, led bulbs are much better than cfls especially if you want to dim them. Add more insulation if you feel air drafts around the cans.