Stuff the insulation around the gap between the lip of the can and the drywall.
Foam insulation around can lights.
Spray foam insulation is an air seal and works a lot better than regular insulation does.
You can stem the flow of air and money by air sealing your light fixtures from the inside with just a roll of painter s tape a can of spray foam insulation and a tube of painter s caulk.
Recessed can lights and spray foam in attic right now with the ic cans i plan to wrap them with fiberglass batting.
The plan is 6 7 of spray foam.
Notice that i said regular insulation such as fiberglass or cellulose insulation not spray foam insulation.
Now it will be safe to heap insulation onto that spot.
4 construct a circular dam to place around each can with wire mesh or sheet metal if the lights are not ic rated.
Even though i already air sealed all my light fixtures from within the attic i decided to go above and beyond by air sealing the very same fixtures.
Which one they use i will know before the project starts but for now i need info on using recessed can lights with it.
Ic or in contact recessed can lights are designed to be installed with regular insulation installed directly beside or on top of them.
I have an attic conversion project that i am bidding and they are looking to use either open or closed cell spray foam insulation for the ceiling.
I think it will be best to keep an airspace between the batting and the can so i will make some sort of wire cage to do this.