Up in the attic clean the ceiling surface around each fixture slit the cover to accommodate the electrical cable and place the cover over the fixture.
Ceiling can lights insulation.
Construct a circular dam to place around each can with wire mesh or sheet metal if the lights are not ic rated.
The lights malfunction is a concern and a safety hazard.
Installing wooden blocks around the.
According to the department of energy recessed lights account for 50 of the total thermal losses of a ceiling.
If you have recessed lights installed in the ceiling you need to keep the insulation away from the heat generated by the lights because it is a fire hazard.
Apply the sealant around the cable and along the edge of the cover where it rests on the ceiling.
Recessed light in a cathedral ceiling recessed lights often leak warm moist air against cold roof sheathing which eventually causes roof rot.
If you re concerned about heat loss through your recessed lights in a cathedral ceiling turn off the light unscrew the bulb and remove the trim to check the label inside.
The dam should provide a minimum 3 inch space around the perimeter of the can.