Apply a bead of caulk around the cutout in the ceiling.
How to seal recessed lights in attic.
Apply the sealant around the cable and along the edge of the cover where it rests on the ceiling.
Only caulk recessed fixtures to the ceiling if the trim ring doesn t have to be removed to change the bulb.
If you have recessed light fixtures in your home you may also have a significant volume of conditioned air escaping into your 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.
In their place install an airtight electrical box and then install a different type of lighting fixture track lighting pendants or some other type of surface mounted fixture.
Here are the solutions we recommend if you have recessed can lights protruding into your attic.
Reinstall the bulb in the recessed light fixture.
Hole in your ceiling and add a 100 watt bulb enough heat to bake cookies and you have a recipe for huge heat loss as well as a major contributor to ice dams.
The best way to deal with these lights is to remove them completely.
After removing the old fixtures add insulation to the empty spots left in the ceiling install airtight electrical boxes and use the same wiring to put in surface mounted fixtures such as track lighting or pendants.
This video from green homes america provides a good overview of the air leakage issue with recessed lights and shows an actual top hat installation.
A good lighting showroom will have lots of options.
Can lights can be a tricky component to properly sealing attic recessed lights.
For more information see air sealing can lights safely fhb 249 the best alternative in your situation is to replace the recessed lights with nonrecessed lights.
Now it will be safe to heap insulation onto that spot.
That s what a recessed light does.
Sealing from below in homes where attic access isn t available or is difficult and for recessed fixtures mounted in first floor ceilings a top hat and insulation is not an option.
Press the trim ring into the caulking.