If you don t see the ic designation however you must keep the.
Can you blow insulation over recessed lights.
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.
But here s another solution which you can do yourself.
You could hire an electrician to replace each fixture with a sealed one rated for insulation contact ic.
You can insulate more effectively if the cans are ic rated.
Even an ic rated light could have a series of holes inside the housing which is letting air escape into the attic.
Insulation should be kept away from recessed can lights because the insulation does not allow the heat generated by the lights to dissipate.
However there are ways you can cover them and then safely add insulation.
You can minimize this heat.
Since you mentioned your cans have holes in them they are most definitely not ic rated.
When heat builds up in a recessed can light it can.
The heat that recessed lights produce can affect temperature in the attic and in the room in which they shine.
If you see them printed on a recessed fixture the fixture presents no fire danger even if you completely cover it with insulation.
Go to a home center and buy a fire rated recessed light cover like the ones made by tenmat for every fixture.
The next thing to check is if the lights are airtight or not.