We are doing a frame walk and insulation inspection on this home. We talked about earlier how your insulation can become a filter essentially and if it doesn't have all six sides of air barrier on it, it can become a filter. The same thing can happen in your attic whenever you just blow insulation up in there. Okay the air can move just right through your insulation and come right in to the house. Your insulation simply becomes a filter for the air and you are bringing hot air right into. You are losing a lot of energy in other words, right out of that one point just because these little pieces of cardboard aren't there. They are easy to install and they do wonders for the attic insulation.