Checking Your Insulation Level!
D's Air & Heating, Inc. has a suggestion for determining if you need more insulation is, to look across your entire attic. If your insulation is level with your floor joist or you can easily see your joists, you need to call a blown insulation professional. If
you cannot see any of the floor joists because the insulation is well
above them, you probably have enough and adding more may not be
cost-effective.