The IC rating determines that it is safe to install recessed lighting in a ceiling with regular insulation such as fiberglass insulation. … Spray foam is a great insulation material, but because it is such a strong barrier against heat loss, it might cause your lights to overheat.

Can recessed lights be covered with insulation?

The IC rating determines that it is safe to install recessed lighting in a ceiling with regular insulation such as fiberglass insulation. … Spray foam is a great insulation material, but because it is such a strong barrier against heat loss, it might cause your lights to overheat.

Can you cover a can light?

Simply place the can light cover over the light and use foam to air seal and hold it in place. The recessed light insulation fixture can then be safely covered with insulation.