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.
How to seal recessed lights in attic.
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.
We ve shown how to use led retrofit inserts in this process so here we take a look at the steps behind using foam sealant to ensure the can is correctly installed into the home envelope.
That s what a recessed light does.
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.
Recessed can lights no easy solution cut a 6 in.
Here are the solutions we recommend if you have recessed can lights protruding into your attic.
Press the trim ring into the caulking.
A good lighting showroom will have lots of options.
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.
Now it will be safe to heap insulation onto that spot.
Only caulk recessed fixtures to the ceiling if the trim ring doesn t have to be removed to change the bulb.
Reinstall the bulb in the recessed light fixture.
Can lights can be a tricky component to properly sealing attic recessed lights.
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.
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.
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.
If you have recessed light fixtures in your home you may also have a significant volume of conditioned air escaping into your attic.