What a smart thing to do! I only had 2 recessed lights in my whole house, and replaced the bulbs with LED bulbs (kept the same fixtures). I figured I'd save some money on electricity, which it true, but another thing I did was seal up the holes (because the fixtures were for incandescent, they had all kinds of venting). So this isn't a "recent" repair (I did it a few years ago) but I decided to use some of that really sticky aluminum tape and tape-up all the holes, since the space above the lights was unconditioned. There was a moment when I thought sealing up the holes wasn't a good idea for reasons of overheating, but the LED's put off almost no heat compared to incandescent. Besides, the fixtures have a heat interlock on them (turns off the juice if it gets too hot). So I checked, and those fixtures get just barely warm to the touch with the LED's on, not anywhere close to "hot".