This video from green homes america provides a good overview of the air leakage issue with recessed lights and shows an actual top hat installation.
Insulation around recessed ceiling lights.
If i replace those bulbs with leds will that reduce the heat enough so i can insulate around the existing lighting cans.
The letters ic stand.
Instead of hanging down from the ceiling like conventional fixtures can lights extend up into the attic so that the only part you see is the front edge of the.
Insulation is treated with chemicals to make it flame resistant but it can still ignite if left next to a source of high heat such as a non ic recessed lighting canister.