Our 1936 home is insulated with a corrugated foil faced cardboard. For the most part I plan on leaving most of it alone, but in the attached garage, sheets of this cardboard have always been on the brink of falling off. I plan of tearing it all down and putting up foil faced foam board. I've done a few internet searches and came up with nothing, but has anyone heard of this old cardboard containing asbestos? It looks like brown ordinary cardboard, but just wanted more opinions.