 have the uh air being sealed in there like you do say fiberglass insulation everybody's got fiberglass insulation which is cheap okay but what does it do that's where the roaches go to hide the mouses mouses mice and all the other all the other critters and pests you don't want living in the bottom of your home or the attic of your home you want a foam insulation that orally services puts out there for you you wanted to evaluate your exact by the way