Can You Blow Insulation Over Recessed Lights

You can insulate more effectively if the cans are ic rated.
Can you blow insulation over recessed lights. Since you mentioned your cans have holes in them they are most definitely not ic rated. Your best bet is to replace the lights before proceeding with blow in insulation. Go to a home center and buy a fire rated recessed light cover like the ones made by tenmat for every fixture. In order to cover your recessed light cans with insulation you need to have ic rated insulation contact cans installed regardless of the type of light installed in the can.
If you don t see the ic designation however you must keep the. You can minimize this heat. When heat builds up in a recessed can light it can. The next thing to check is if the lights are airtight or not.
Insulation should be kept away from recessed can lights because the insulation does not allow the heat generated by the lights to dissipate. Over time debris from leaves and other sources can build up on top of the light so it would be reassuring to know that product has already passed. Even an ic rated light could have a series of holes inside the housing which is letting air escape into the attic. You could hire an electrician to replace each fixture with a sealed one rated for insulation contact ic.
If you see them printed on a recessed fixture the fixture presents no fire danger even if you completely cover it with insulation. The heat that recessed lights produce can affect temperature in the attic and in the room in which they shine.