Air Sealing Around Electrical Boxes in Ceiling from the Attic
Working on an unfinished attic in Southern Ontario. I just watched Mike Guertin’s video re: the topic above.
I sealed the my standard electrical boxes by butting rigid foam tight to the sides and top of the box, cutting space for the wires. Kept the foam held held in place with acoustical sealant, then spray foamed the rigid foam with Gaps and Cracks. I also spray foamed the spaces in the rigid foam where the wires come out. I did not use fire-rated material.
In an earlier post I read that there was no knowledge of having to use fire-rated material to insulate around the electrical box, but to keep the space inside the electrical box clear of insulation.
Can I confirm that this is true? I DO NOT have to use fire-rated caulk, vapour barrier, or leave a space between electrical box and rigid foam or spray foam when dealing with a standard electrical box?
Thanks for clarifying,
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