Adam writes from Lake Zurich, Illinois: "When insulating around IC-rated can lights, is it necessary to install any type of sheathing or shield to keep the insulation from touching the light? Is there any difference for blown insulation in regards to this question?"

Answer: There is no need to install a sheathing or shield. IC-rated lights can come in contact with the insulation. There is no difference with regard to blown-in insulation; it can be blown directly over IC-rated lights.