As another approach for insulating around the fixture i have worked with an insulation contractor who sprays foam over a dome shaped mold.
Attic insulation around light fixtures.
Ensure you use a foam sealant to seal and insulate around any attic windows.
Loose fill or batt the common term for blanket insulation.
Both can be added to uninsulated attics or layered over existing material.
However blown insulation can create a fire hazard if it comes in contact with electrical fixtures.
Insulating your attic can significantly decrease your heating and cooling costs.
These lights create a tremendous amount of heat which could ignite the insulation and set the house ablaze.
If you have recessed lighting in your ceiling it can get in the way when you want to insulate the attic because the canisters might get hot.
Brands like atticat insulation can be blown in with the proper machinery and when they re applied this way the insulation doesn t settle ensuring consistent and long lasting insulation for years to come.
Alternatively you could use loosefill insulation instead of laying down batting.
Keep all insulation at least 3 inches away from recessed can lights unless they are rated ic insulated ceiling.
When the foam sets up you remove the mold and you have a cap for the light which then gets foamed in place.
Keep all insulation at least three inches away from recessed light fixtures.
Once you ve decided which type is best for you examine the material options and prices to home in on the right product.
Again this approach only works when you have an accessible attic space.
How to install insulation next to ic light fixtures.
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.
Unlike site fabricated light covers that require excessive time labor and cost to build smartcap attic recessed light cover is an easy.
If there are recessed light fixtures in the ceiling below the attic be careful not to lay insulation on top of the fixtures.
Never lay insulation over recessed light fixtures or soffit vents.
If you are using loose fill insulation use sheet metal or wire mesh to create barriers around the openings for such lights.
Now it will be safe to heap insulation onto that spot.
For diy attic insulation you ve got two choices.