cc wrote:

Is there a retrofit kit to prevent all the heat and ac being leaked by
these lights? They are 6 years old and not the type that allow
insulation to be in contact. Thanks all.

I believe someone makes vacuformed plastic boxes that will fit over the
can and maintain proper clearances to allow insulation to be placed on
top and around. The flange on the box is taped or glued down to the
sheetrock.