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jm485
Outlet Air Infiltration

I live in a 6 year old house and have always noticed air infiltration through outlets and lights switches on exterior walls. I installed the thin foam gasket between the cover and the outlet, but I still get a lot of infiltration. Is it possible to use a limited expansion spray foam insulation around these outlets and switches? My thought is to get the spray between the back of the outlet box and the exterior wall. Any thoughts?

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