My attic is divided by a piece of foil backed insulation board. its only ab out 1/8" thick, but I need to cut a piece out to get to the other side of t he attic to hang a ceiling fan. Don't understand why it is there. Either s ide of the attic is open to the vents in the eve, don't what purpose it wou ld serve. Maybe to stop breeze from coming in the eve on one side of the house throug h the attic and out the other removing any heat trapped there in the winter ?
Any help is appreciated.