What should you look out for when insulating vinyl flooring?

In the 2nd hour, Paul chugs along reminding us with Daylight Savings Time coming tomorrow, this is a great time to make sure your smoke and carbon monoxide alarms are ready to rock if need be, as well as some good advice about making sure they are located in the best possible spots in your home, before we dive back into the phone line hearing from someone on why their AC unit is much louder than usual whenever it comes on, a kitchen hood vent over an island that is accidentally taking IN air instead of pushing OUT air, and the best advice you can find on insulating your vinyl flooring.