Insulating Around Can Lights

Apply the sealant around the cable and along the edge of the cover where it rests on the ceiling.
Insulating around can lights. Vaulted ceiling can lights. You can use a remodeling type to replace non airtight fixtures. Usually they will be ic rated insulation contact as well. If you do it make sure the power is off at the circuit breaker don t rely on just turning the light switch off someone could turn on the switch while you are working in the attic.
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. 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. The dam should provide a minimum 3 inch space around the perimeter of the can. Airtight recessed fixture airtight fixtures will be labeled.
Then the insulation can go up to and cover the cans. Insulating downlights using led lighting instead of the halogen variety from a safety perspective can become a legal issue when used with a combination barrier and it s critical to ask your led manufacturer whether they. 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 from the inside. Construct a circular dam to place around each can with wire mesh or sheet metal if the lights are not ic rated.
The cans are not that expensive and if there is easy access in the attic it s definitely a diy project.