This flexible fire resistant cover from tenmat comes in two sizes.
Recessed light air sealing covers.
Cut a hole or a slot in the side to accommodate for the fixture s wiring and place seal a light over the recessed light.
Recessed light air sealing covers.
Using flame retardant grade foam available from your local home center seal around all fours sides and the hole slot for wiring of the seal a light creating an air tight seal between the fixture and ceiling.
First open the cover up and then place it over the recessed light fixture.
A smoke stick reveals air movement through a recessed fixture in a house depressurized with a blower door.
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.
You will want to a utility knife handy to cut away parts of the cover to allow passage for electrical wiring to the fixture.
14 x 14 in.
Use the spray foam insulation to seal the cover into place.
Ideally the bottom of the cover will sit flat on top of the drywall ceiling.
Air sealing recessed lights sealing can lights will plug a major source of air leakage but can also cause fixtures to overheat.